101031131320 has 64 divisors (see below), whose sum is σ = 263082931200. Its totient is φ = 34200766080.

The previous prime is 101031131261. The next prime is 101031131347. The reversal of 101031131320 is 23131130101.

It is a junction number, because it is equal to n+sod(n) for n = 101031131294 and 101031131303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2261586 + ... + 2305825.

It is an arithmetic number, because the mean of its divisors is an integer number (4110670800).

Almost surely, 2^101031131320 is an apocalyptic number.

101031131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101031131320 is an abundant number, since it is smaller than the sum of its proper divisors (162051799880).

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

101031131320 is a wasteful number, since it uses less digits than its factorization.

101031131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567508 (or 4567504 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 101031131320 its reverse (23131130101), we get a palindrome (124162261421).

The spelling of 101031131320 in words is "one hundred one billion, thirty-one million, one hundred thirty-one thousand, three hundred twenty".