23451205212 has 60 divisors (see below), whose sum is σ = 61901375536. Its totient is φ = 7741163520.

The previous prime is 23451205201. The next prime is 23451205213. The reversal of 23451205212 is 21250215432.

23451205212 is a `hidden beast` number, since 2 + 3 + 451 + 205 + 2 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451205213) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 317989 + ... + 384732.

Almost surely, 2^23451205212 is an apocalyptic number.

It is an amenable number.

23451205212 is an abundant number, since it is smaller than the sum of its proper divisors (38450170324).

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

23451205212 is a wasteful number, since it uses less digits than its factorization.

23451205212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702840 (or 702829 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 23451205212 in words is "twenty-three billion, four hundred fifty-one million, two hundred five thousand, two hundred twelve".