23312012 has 24 divisors (see below), whose sum is σ = 43382640. Its totient is φ = 10929600.

The previous prime is 23312011. The next prime is 23312017. The reversal of 23312012 is 21021332.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23312011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6158 + ... + 9194.

It is an arithmetic number, because the mean of its divisors is an integer number (1807610).

Almost surely, 2^23312012 is an apocalyptic number.

It is an amenable number.

23312012 is a deficient number, since it is larger than the sum of its proper divisors (20070628).

23312012 is a wasteful number, since it uses less digits than its factorization.

23312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161 (or 3159 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23312012 is about 4828.2514433281. The cubic root of 23312012 is about 285.6668982838. Note that the first 3 decimals are identical.

Adding to 23312012 its reverse (21021332), we get a palindrome (44333344).

The spelling of 23312012 in words is "twenty-three million, three hundred twelve thousand, twelve".