31313214032407 has 4 divisors (see below), whose sum is σ = 31313225755096. Its totient is φ = 31313202309720.

The previous prime is 31313214032371. The next prime is 31313214032449. The reversal of 31313214032407 is 70423041231313.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31313214032407 - 2³¹ = 31311066548759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313214032467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314413 + ... + 7919929.

It is an arithmetic number, because the mean of its divisors is an integer number (7828306438774).

Almost surely, 2^{31313214032407} is an apocalyptic number.

31313214032407 is a deficient number, since it is larger than the sum of its proper divisors (11722689).

31313214032407 is an equidigital number, since it uses as much as digits as its factorization.

31313214032407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11722688.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 31313214032407 in words is "thirty-one trillion, three hundred thirteen billion, two hundred fourteen million, thirty-two thousand, four hundred seven".