23111992 has 16 divisors (see below), whose sum is σ = 43412040. Its totient is φ = 11535456.

The previous prime is 23111983. The next prime is 23112007. The reversal of 23111992 is 29911132.

It is a self number, because there is not a number n which added to its sum of digits gives 23111992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2898 + ... + 7390.

Almost surely, 2^23111992 is an apocalyptic number.

It is an amenable number.

23111992 is a deficient number, since it is larger than the sum of its proper divisors (20300048).

23111992 is a wasteful number, since it uses less digits than its factorization.

23111992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142 (or 5138 counting only the distinct ones).

The product of its digits is 972, while the sum is 28.

The square root of 23111992 is about 4807.4933177281. The cubic root of 23111992 is about 284.8475310456.

The spelling of 23111992 in words is "twenty-three million, one hundred eleven thousand, nine hundred ninety-two".