31312203311130 has 48 divisors (see below), whose sum is σ = 87418559452320. Its totient is φ = 7157075042208.

The previous prime is 31312203311099. The next prime is 31312203311141. The reversal of 31312203311130 is 3111330221313.

It is a self number, because there is not a number n which added to its sum of digits gives 31312203311130.

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, 10650407820 + ... + 10650410759.

It is an arithmetic number, because the mean of its divisors is an integer number (1821219988590).

Almost surely, 2^{31312203311130} is an apocalyptic number.

31312203311130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31312203311130 is an abundant number, since it is smaller than the sum of its proper divisors (56106356141190).

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

31312203311130 is a wasteful number, since it uses less digits than its factorization.

31312203311130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21300818603 (or 21300818596 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31312203311130 its reverse (3111330221313), we get a palindrome (34423533532443).

The spelling of 31312203311130 in words is "thirty-one trillion, three hundred twelve billion, two hundred three million, three hundred eleven thousand, one hundred thirty".