31312331101120 has 56 divisors (see below), whose sum is σ = 74740442187600. Its totient is φ = 12495039946752.

The previous prime is 31312331101111. The next prime is 31312331101153. The reversal of 31312331101120 is 2110113321313.

It is a junction number, because it is equal to n+sod(n) for n = 31312331101091 and 31312331101100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116633265 + ... + 116901424.

It is an arithmetic number, because the mean of its divisors is an integer number (1334650753350).

Almost surely, 2^{31312331101120} is an apocalyptic number.

It is an amenable number.

31312331101120 is an abundant number, since it is smaller than the sum of its proper divisors (43428111086480).

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

31312331101120 is a wasteful number, since it uses less digits than its factorization.

31312331101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233535125 (or 233535115 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31312331101120 its reverse (2110113321313), we get a palindrome (33422444422433).

The spelling of 31312331101120 in words is "thirty-one trillion, three hundred twelve billion, three hundred thirty-one million, one hundred one thousand, one hundred twenty".