111996923 has 2 divisors, whose sum is σ = 111996924. Its totient is φ = 111996922.

The previous prime is 111996889. The next prime is 111996931. The reversal of 111996923 is 329699111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111996923 - 2²⁰ = 110948347 is a prime.

It is a super-2 number, since 2×111996923² = 25086621522935858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111996023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55998461 + 55998462.

It is an arithmetic number, because the mean of its divisors is an integer number (55998462).

Almost surely, 2^111996923 is an apocalyptic number.

111996923 is a deficient number, since it is larger than the sum of its proper divisors (1).

111996923 is an equidigital number, since it uses as much as digits as its factorization.

111996923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 41.

The square root of 111996923 is about 10582.8598686744. The cubic root of 111996923 is about 482.0240385043.

The spelling of 111996923 in words is "one hundred eleven million, nine hundred ninety-six thousand, nine hundred twenty-three".