31013102100000 has 144 divisors (see below), whose sum is σ = 101755229498496. Its totient is φ = 8270160480000.

The previous prime is 31013102099957. The next prime is 31013102100067. The reversal of 31013102100000 is 120131013.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 51388504 + ... + 51988503.

It is an arithmetic number, because the mean of its divisors is an integer number (706633538184).

Almost surely, 2^{31013102100000} is an apocalyptic number.

31013102100000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31013102100000 is an abundant number, since it is smaller than the sum of its proper divisors (70742127398496).

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

31013102100000 is an equidigital number, since it uses as much as digits as its factorization.

31013102100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103377045 (or 103377017 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31013102100000 its reverse (120131013), we get a palindrome (31013222231013).

The spelling of 31013102100000 in words is "thirty-one trillion, thirteen billion, one hundred two million, one hundred thousand".