31006554132 has 12 divisors (see below), whose sum is σ = 72348626336. Its totient is φ = 10335518040.

The previous prime is 31006554121. The next prime is 31006554169. The reversal of 31006554132 is 23145560013.

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

It is a super-2 number, since 2×31006554132² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31006554132.

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, 1291939744 + ... + 1291939767.

Almost surely, 2^31006554132 is an apocalyptic number.

It is an amenable number.

31006554132 is an abundant number, since it is smaller than the sum of its proper divisors (41342072204).

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

31006554132 is a wasteful number, since it uses less digits than its factorization.

31006554132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583879518 (or 2583879516 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 31006554132 in words is "thirty-one billion, six million, five hundred fifty-four thousand, one hundred thirty-two".