111100023 has 12 divisors (see below), whose sum is σ = 162037200. Its totient is φ = 73346976.

The previous prime is 111099997. The next prime is 111100027. The reversal of 111100023 is 320001111.

It is not a de Polignac number, because 111100023 - 2¹⁴ = 111083639 is a prime.

It is a super-2 number, since 2×111100023² = 24686430221201058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111099978 and 111100014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58998 + ... + 60851.

It is an arithmetic number, because the mean of its divisors is an integer number (13503100).

Almost surely, 2^111100023 is an apocalyptic number.

111100023 is a deficient number, since it is larger than the sum of its proper divisors (50937177).

111100023 is a wasteful number, since it uses less digits than its factorization.

111100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119958 (or 119955 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 111100023 is about 10540.3995654814. The cubic root of 111100023 is about 480.7338644137.

Adding to 111100023 its reverse (320001111), we get a palindrome (431101134).

The spelling of 111100023 in words is "one hundred eleven million, one hundred thousand, twenty-three".