2123

2123 is a natural number that follows 2122 and precedes 2124. In mathematics, it is a composite semiprime, with prime factorization 11 × 193. It is odd and not a prime. Its divisors are 1, 11, 193, and 2123. In base 10 its digits sum to 8. In hexadecimal, 2123 equals 0x84B.

As a year, 2123 AD would belong to the 22nd century and to the Gregorian calendar as a non-leap year, since 2123 mod 4 is 3. It would contain 365 days.

There are no documented real-world historical events tied to the year 2123 to date, as it lies in the future relative to contemporary records. In speculative fiction, 2123 is occasionally used as a setting to explore future technology, space exploration, and social change.

In other uses, 2123 appears in product codes, model numbers, or postal identifiers independent of the year.