31552045212 has 12 divisors (see below), whose sum is σ = 73621438856. Its totient is φ = 10517348400.

The previous prime is 31552045141. The next prime is 31552045229. The reversal of 31552045212 is 21254025513.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 31552045212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314668539 + ... + 1314668562.

Almost surely, 2^31552045212 is an apocalyptic number.

It is an amenable number.

31552045212 is an abundant number, since it is smaller than the sum of its proper divisors (42069393644).

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

31552045212 is a wasteful number, since it uses less digits than its factorization.

31552045212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629337108 (or 2629337106 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 31552045212 in words is "thirty-one billion, five hundred fifty-two million, forty-five thousand, two hundred twelve".