31013321101320 has 128 divisors (see below), whose sum is σ = 99007943328000. Its totient is φ = 7744621142016.

The previous prime is 31013321101313. The next prime is 31013321101361. The reversal of 31013321101320 is 2310112331013.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37791549 + ... + 38603468.

It is an arithmetic number, because the mean of its divisors is an integer number (773499557250).

Almost surely, 2^{31013321101320} is an apocalyptic number.

31013321101320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31013321101320 is an abundant number, since it is smaller than the sum of its proper divisors (67994622226680).

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

31013321101320 is a wasteful number, since it uses less digits than its factorization.

31013321101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76395247 (or 76395243 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31013321101320 its reverse (2310112331013), we get a palindrome (33323433432333).

The spelling of 31013321101320 in words is "thirty-one trillion, thirteen billion, three hundred twenty-one million, one hundred one thousand, three hundred twenty".