11 (number)

11 (eleven) is the natural number following 10 and preceding 12. It is the smallest number whose name in English has three syllables.

CardinalelevenOrdinal11th
(eleventh)Numeral systemundecimalFactorizationprimePrime5thDivisors1, 11Greek numeralΙΑ´Roman numeralXI, xiGreekprefixLatinprefixBinary1011₂Ternary102₃Senary15₆Octal13₈DuodecimalB₁₂HexadecimalB₁₆Bangla১১Hebrew numeralי"אDevanagari numerals११Malayalam൰൧Tamil numeralsககTelugu౧౧Babylonian numeral𒌋𒐕