23091045012 has 36 divisors (see below), whose sum is σ = 66707464096. Its totient is φ = 6597441360.

The previous prime is 23091045007. The next prime is 23091045023. The reversal of 23091045012 is 21054019032.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45815314 + ... + 45815817.

Almost surely, 2^23091045012 is an apocalyptic number.

It is an amenable number.

23091045012 is an abundant number, since it is smaller than the sum of its proper divisors (43616419084).

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

23091045012 is a wasteful number, since it uses less digits than its factorization.

23091045012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91631148 (or 91631143 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 23091045012 in words is "twenty-three billion, ninety-one million, forty-five thousand, twelve".