23188012 has 12 divisors (see below), whose sum is σ = 41135416. Its totient is φ = 11435040.

The previous prime is 23187929. The next prime is 23188021. The reversal of 23188012 is 21088132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39414 + ... + 39997.

Almost surely, 2^23188012 is an apocalyptic number.

It is an amenable number.

23188012 is a deficient number, since it is larger than the sum of its proper divisors (17947404).

23188012 is a wasteful number, since it uses less digits than its factorization.

23188012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79488 (or 79486 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 23188012 is about 4815.3932342022. The cubic root of 23188012 is about 285.1594962370.

The spelling of 23188012 in words is "twenty-three million, one hundred eighty-eight thousand, twelve".