31010212112 has 20 divisors (see below), whose sum is σ = 65544312336. Its totient is φ = 14095550880.

The previous prime is 31010212097. The next prime is 31010212147. The reversal of 31010212112 is 21121201013.

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, 88097018 + ... + 88097369.

Almost surely, 2^31010212112 is an apocalyptic number.

It is an amenable number.

31010212112 is an abundant number, since it is smaller than the sum of its proper divisors (34534100224).

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

31010212112 is a wasteful number, since it uses less digits than its factorization.

31010212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176194406 (or 176194400 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 31010212112 its reverse (21121201013), we get a palindrome (52131413125).

The spelling of 31010212112 in words is "thirty-one billion, ten million, two hundred twelve thousand, one hundred twelve".