23056402012 has 12 divisors (see below), whose sum is σ = 46112804080. Its totient is φ = 9881315136.

The previous prime is 23056402007. The next prime is 23056402043. The reversal of 23056402012 is 21020465032.

23056402012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411721437 + ... + 411721492.

Almost surely, 2^23056402012 is an apocalyptic number.

It is an amenable number.

23056402012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23056402012 is a wasteful number, since it uses less digits than its factorization.

23056402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823442940 (or 823442938 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23056402012 its reverse (21020465032), we get a palindrome (44076867044).

The spelling of 23056402012 in words is "twenty-three billion, fifty-six million, four hundred two thousand, twelve".