210031311312 has 120 divisors (see below), whose sum is σ = 636069330624. Its totient is φ = 66966476544.

The previous prime is 210031311277. The next prime is 210031311349. The reversal of 210031311312 is 213113130012.

210031311312 is a `hidden beast` number, since 2 + 10 + 0 + 31 + 311 + 312 = 666.

It is a super-2 number, since 2×210031311312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1084933 + ... + 1263780.

Almost surely, 2^210031311312 is an apocalyptic number.

It is an amenable number.

210031311312 is an abundant number, since it is smaller than the sum of its proper divisors (426038019312).

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

210031311312 is a wasteful number, since it uses less digits than its factorization.

210031311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348759 (or 2348741 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 210031311312 its reverse (213113130012), we get a palindrome (423144441324).

The spelling of 210031311312 in words is "two hundred ten billion, thirty-one million, three hundred eleven thousand, three hundred twelve".