10131231320 has 64 divisors (see below), whose sum is σ = 26076487680. Its totient is φ = 3470265216.

The previous prime is 10131231301. The next prime is 10131231349. The reversal of 10131231320 is 2313213101.

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, 287717 + ... + 321003.

It is an arithmetic number, because the mean of its divisors is an integer number (407445120).

Almost surely, 2^10131231320 is an apocalyptic number.

10131231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10131231320 is an abundant number, since it is smaller than the sum of its proper divisors (15945256360).

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

10131231320 is a wasteful number, since it uses less digits than its factorization.

10131231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34392 (or 34388 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10131231320 its reverse (2313213101), we get a palindrome (12444444421).

The spelling of 10131231320 in words is "ten billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred twenty".