131020331100 has 144 divisors (see below), whose sum is σ = 422510457600. Its totient is φ = 31152798720.

The previous prime is 131020331051. The next prime is 131020331129. The reversal of 131020331100 is 1133020131.

131020331100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 131020331100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 579160 + ... + 772959.

It is an arithmetic number, because the mean of its divisors is an integer number (2934100400).

Almost surely, 2^131020331100 is an apocalyptic number.

131020331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131020331100 is an abundant number, since it is smaller than the sum of its proper divisors (291490126500).

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

131020331100 is a wasteful number, since it uses less digits than its factorization.

131020331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352172 (or 1352165 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 131020331100 its reverse (1133020131), we get a palindrome (132153351231).

The spelling of 131020331100 in words is "one hundred thirty-one billion, twenty million, three hundred thirty-one thousand, one hundred".