31014265642440 has 128 divisors (see below), whose sum is σ = 97580970812160. Its totient is φ = 7870728233984.

The previous prime is 31014265642429. The next prime is 31014265642447. The reversal of 31014265642440 is 4424656241013.

It is a junction number, because it is equal to n+sod(n) for n = 31014265642392 and 31014265642401.

It is not an unprimeable number, because it can be changed into a prime (31014265642447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27976719 + ... + 29064158.

It is an arithmetic number, because the mean of its divisors is an integer number (762351334470).

Almost surely, 2^{31014265642440} is an apocalyptic number.

31014265642440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31014265642440 is an abundant number, since it is smaller than the sum of its proper divisors (66566705169720).

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

31014265642440 is a wasteful number, since it uses less digits than its factorization.

31014265642440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57041111 (or 57041107 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 31014265642440 in words is "thirty-one trillion, fourteen billion, two hundred sixty-five million, six hundred forty-two thousand, four hundred forty".