31312140253104 has 40 divisors (see below), whose sum is σ = 82097004552640. Its totient is φ = 10281598291008.

The previous prime is 31312140253103. The next prime is 31312140253151. The reversal of 31312140253104 is 40135204121313.

It is not an unprimeable number, because it can be changed into a prime (31312140253103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4868177794 + ... + 4868184225.

It is an arithmetic number, because the mean of its divisors is an integer number (2052425113816).

Almost surely, 2^{31312140253104} is an apocalyptic number.

It is an amenable number.

31312140253104 is an abundant number, since it is smaller than the sum of its proper divisors (50784864299536).

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

31312140253104 is a wasteful number, since it uses less digits than its factorization.

31312140253104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9736362097 (or 9736362091 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 31312140253104 its reverse (40135204121313), we get a palindrome (71447344374417).

The spelling of 31312140253104 in words is "thirty-one trillion, three hundred twelve billion, one hundred forty million, two hundred fifty-three thousand, one hundred four".