100131201320 has 32 divisors (see below), whose sum is σ = 226305515520. Its totient is φ = 39872869440.

The previous prime is 100131201299. The next prime is 100131201329. The reversal of 100131201320 is 23102131001.

It is a junction number, because it is equal to n+sod(n) for n = 100131201295 and 100131201304.

It is not an unprimeable number, because it can be changed into a prime (100131201329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5603816 + ... + 5621655.

It is an arithmetic number, because the mean of its divisors is an integer number (7072047360).

Almost surely, 2^100131201320 is an apocalyptic number.

100131201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100131201320 is an abundant number, since it is smaller than the sum of its proper divisors (126174314200).

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

100131201320 is a wasteful number, since it uses less digits than its factorization.

100131201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225705 (or 11225701 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 100131201320 its reverse (23102131001), we get a palindrome (123233332321).

The spelling of 100131201320 in words is "one hundred billion, one hundred thirty-one million, two hundred one thousand, three hundred twenty".