Twenty-three (23) is the natural number following twenty-two and preceding twenty-four.
Twenty-three is the ninth prime number, the sequence continues 29, 31, 37, 41,... Twenty-three is also a factorial prime.
Twenty-three is also
- The atomic number of vanadium.
- In early 20th century United States slang, it meant to leave a place.
- The sacred number of Eris, Goddess of Discord? (along with 17 and 5) from Principia Discordia; it is the number of the Illuminati.
See also: twenty-one, twenty-two, twenty-four, twenty-five, integer, list of numbers.
This article is about the number. For the year AD 23, see 23. For Karl Koch's work, see 23 (movie).