111959023 has 8 divisors (see below), whose sum is σ = 123258960. Its totient is φ = 100846080.

The previous prime is 111959021. The next prime is 111959033. The reversal of 111959023 is 320959111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111959023 - 2¹ = 111959021 is a prime.

It is a super-2 number, since 2×111959023² = 25069645662229058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111959021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45490 + ... + 47887.

It is an arithmetic number, because the mean of its divisors is an integer number (15407370).

Almost surely, 2^111959023 is an apocalyptic number.

111959023 is a deficient number, since it is larger than the sum of its proper divisors (11299937).

111959023 is a wasteful number, since it uses less digits than its factorization.

111959023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93497.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 111959023 is about 10581.0690858722. The cubic root of 111959023 is about 481.9696597122.

The spelling of 111959023 in words is "one hundred eleven million, nine hundred fifty-nine thousand, twenty-three".