31316040240225 has 96 divisors (see below), whose sum is σ = 56761837676544. Its totient is φ = 15141128428800.

The previous prime is 31316040240169. The next prime is 31316040240271. The reversal of 31316040240225 is 52204204061313.

It is not a de Polignac number, because 31316040240225 - 2⁹ = 31316040239713 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20898424 + ... + 22346726.

It is an arithmetic number, because the mean of its divisors is an integer number (591269142464).

Almost surely, 2^{31316040240225} is an apocalyptic number.

It is an amenable number.

31316040240225 is a deficient number, since it is larger than the sum of its proper divisors (25445797436319).

31316040240225 is a wasteful number, since it uses less digits than its factorization.

31316040240225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448727 (or 1448722 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 31316040240225 in words is "thirty-one trillion, three hundred sixteen billion, forty million, two hundred forty thousand, two hundred twenty-five".