31055651745120 has 72 divisors (see below), whose sum is σ = 105977411585136. Its totient is φ = 8281507131648.

The previous prime is 31055651745113. The next prime is 31055651745169. The reversal of 31055651745120 is 2154715655013.

31055651745120 is a `hidden beast` number, since 3 + 1 + 0 + 5 + 5 + 6 + 517 + 4 + 5 + 120 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10783210972 + ... + 10783213851.

It is an arithmetic number, because the mean of its divisors is an integer number (1471908494238).

Almost surely, 2^{31055651745120} is an apocalyptic number.

31055651745120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31055651745120 is an abundant number, since it is smaller than the sum of its proper divisors (74921759840016).

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

31055651745120 is a wasteful number, since it uses less digits than its factorization.

31055651745120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21566424844 (or 21566424833 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 31055651745120 in words is "thirty-one trillion, fifty-five billion, six hundred fifty-one million, seven hundred forty-five thousand, one hundred twenty".