31133112411320 has 64 divisors (see below), whose sum is σ = 70481296419840. Its totient is φ = 12376486108800.

The previous prime is 31133112411253. The next prime is 31133112411371. The reversal of 31133112411320 is 2311421133113.

It is a self number, because there is not a number n which added to its sum of digits gives 31133112411320.

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, 430746785 + ... + 430819055.

It is an arithmetic number, because the mean of its divisors is an integer number (1101270256560).

Almost surely, 2^{31133112411320} is an apocalyptic number.

It is an amenable number.

31133112411320 is an abundant number, since it is smaller than the sum of its proper divisors (39348184008520).

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

31133112411320 is a wasteful number, since it uses less digits than its factorization.

31133112411320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138516 (or 138512 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 31133112411320 its reverse (2311421133113), we get a palindrome (33444533544433).

The spelling of 31133112411320 in words is "thirty-one trillion, one hundred thirty-three billion, one hundred twelve million, four hundred eleven thousand, three hundred twenty".