31212312053190 has 64 divisors (see below), whose sum is σ = 79349364172224. Its totient is φ = 7830382399488.

The previous prime is 31212312053189. The next prime is 31212312053213. The reversal of 31212312053190 is 9135021321213.

It is a super-2 number, since 2×31212312053190² (a number of 28 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 11661229 + ... + 14085768.

It is an arithmetic number, because the mean of its divisors is an integer number (1239833815191).

Almost surely, 2^{31212312053190} is an apocalyptic number.

31212312053190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31212312053190 is an abundant number, since it is smaller than the sum of its proper divisors (48137052119034).

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

31212312053190 is a wasteful number, since it uses less digits than its factorization.

31212312053190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25749401.

The product of its (nonzero) digits is 9720, while the sum is 33.

The spelling of 31212312053190 in words is "thirty-one trillion, two hundred twelve billion, three hundred twelve million, fifty-three thousand, one hundred ninety".