31011031133320 has 128 divisors (see below), whose sum is σ = 84899880898560. Its totient is φ = 9951633838080.

The previous prime is 31011031133309. The next prime is 31011031133363. The reversal of 31011031133320 is 2333113011013.

31011031133320 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×31011031133320² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31011031133291 and 31011031133300.

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, 17135464 + ... + 18858583.

It is an arithmetic number, because the mean of its divisors is an integer number (663280319520).

Almost surely, 2^{31011031133320} is an apocalyptic number.

It is an amenable number.

31011031133320 is an abundant number, since it is smaller than the sum of its proper divisors (53888849765240).

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

31011031133320 is a wasteful number, since it uses less digits than its factorization.

31011031133320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35994263 (or 35994259 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 31011031133320 its reverse (2333113011013), we get a palindrome (33344144144333).

The spelling of 31011031133320 in words is "thirty-one trillion, eleven billion, thirty-one million, one hundred thirty-three thousand, three hundred twenty".