123 (one hundred ndtwenty-three) is the natural number following

122 122 may refer to: *122 (number), a natural number *AD 122, a year in the 2nd century AD *122 BC, a year in the 2nd century BC *122 (film), ''122'' (film), a 2019 Egyptian psychological horror film *"One Twenty Two", a 2022 single by the American roc ...

and preceding 124.

In mathematics

*123 is a

Lucas number The Lucas numbers or Lucas series are an integer sequence named after the mathematician François Édouard Anatole Lucas (1842–1891), who studied both that sequence and the closely related Fibonacci numbers. Lucas numbers and Fibonacci n ...

. It is the eleventh member of the Mian-Chowla sequence. *Along with 6, 123 is one of only two positive integers that is simultaneously two more than a perfect square and two less than a perfect cube (123 = 11² + 2 = 5³ - 2).

In religion

The

Book of Numbers The book of Numbers (from Greek Ἀριθμοί, ''Arithmoi''; he, בְּמִדְבַּר, ''Bəmīḏbar'', "In the desert f) is the fourth book of the Hebrew Bible, and the fourth of five books of the Jewish Torah. The book has a long and c ...

says that Aaron died at the age of 123.

In telephony

*The

emergency telephone number Most public switched telephone networks have a single emergency telephone number (sometimes known as the universal emergency telephone number or the emergency services number) that allows a caller to contact local emergency services for assis ...

in Colombia *The

telephone number A telephone number is a sequence of digits assigned to a landline telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices f ...

of the

speaking clock A speaking clock or talking clock is a live or recorded human voice service, usually accessed by telephone, that gives the correct time. The first telephone speaking clock service was introduced in France, in association with the Paris Observ ...

for the correct

time Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of various measurements used to sequence events, ...

in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...

*The electricity ( PLN)

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

*The medical

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Medit ...

*The Notation for national and international telephone numbers Recommendation

ITU-T The ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU). It is responsible for coordinating standards for telecommunications and Information Comm ...

Recommendation

E.123 E.123 is an international standard by the standardization union (ITU-T), entitled ''Notation for national and international telephone numbers, e-mail addresses and Web addresses''. It provides guidelines for the presentation of telephone numbers, e ...

defines a standard way to write

s, e-mail addresses, and web addresses

In other fields

123 is also: * ''123'' (film), a 2002 Indian film *

123 (interbank network) "123" is a shared cash network for the banking community in Egypt. It is provided by Egyptian Banks Co. for Technological Advancement (EBC). Services The "123" network links more than 30 Egyptian Banks supporting more than 1500 ATMs distribu ...

, shared cash network in Egypt *

123 (New Jersey bus) 123 may refer to: * The first three positive Arabic numerals * 123 (number), the natural number following 122 and preceding 124 * AD 123, a year of the Julian calendar, in the second century AD * 123 BC, a year of the pre-Julian Roman calendar ...

1-2-3 1-2-3; 1, 2, 3; or One, Two, Three may refer to: Brands * 1-2-3 (fuel station), in Norway * Lotus 1-2-3, a computer spreadsheet program * .123, a file extension used by Lotus 1-2-3 * Jell-O 1-2-3, a dessert Film, TV and books * ''One, Two, Three' ...

", 1965 song written and recorded by Len Barry *The

atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...

of the yet-to-be-discovered element unbitrium

References

{{Integers, 1 Integers

In mathematics

In religion

In telephony

In other fields

See also

References