31312030113112 has 16 divisors (see below), whose sum is σ = 67097207385360. Its totient is φ = 13419441477024.

The previous prime is 31312030113107. The next prime is 31312030113113. The reversal of 31312030113112 is 21131103021313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312030113113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279571697383 + ... + 279571697494.

It is an arithmetic number, because the mean of its divisors is an integer number (4193575461585).

Almost surely, 2^{31312030113112} is an apocalyptic number.

It is an amenable number.

31312030113112 is an abundant number, since it is smaller than the sum of its proper divisors (35785177272248).

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

31312030113112 is a wasteful number, since it uses less digits than its factorization.

31312030113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559143394890 (or 559143394886 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31312030113112 its reverse (21131103021313), we get a palindrome (52443133134425).

The spelling of 31312030113112 in words is "thirty-one trillion, three hundred twelve billion, thirty million, one hundred thirteen thousand, one hundred twelve".