31311000330112 has 32 divisors (see below), whose sum is σ = 63308389210920. Its totient is φ = 15421835979264.

The previous prime is 31311000330061. The next prime is 31311000330131. The reversal of 31311000330112 is 21103300011313.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 31311000330112.

It is a congruent number.

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, 1825492843 + ... + 1825509994.

Almost surely, 2^{31311000330112} is an apocalyptic number.

31311000330112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31311000330112 is an abundant number, since it is smaller than the sum of its proper divisors (31997388880808).

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

31311000330112 is an equidigital number, since it uses as much as digits as its factorization.

31311000330112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3651002918 (or 3651002906 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31311000330112 its reverse (21103300011313), we get a palindrome (52414300341425).

The spelling of 31311000330112 in words is "thirty-one trillion, three hundred eleven billion, three hundred thirty thousand, one hundred twelve".