31371311317313 has 32 divisors (see below), whose sum is σ = 35235548425728. Its totient is φ = 27685993062400.

The previous prime is 31371311317273. The next prime is 31371311317343.

31371311317313 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31371311317313 - 2⁶ = 31371311317249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31371311317343) 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, 86016923 + ... + 86380863.

It is an arithmetic number, because the mean of its divisors is an integer number (1101110888304).

Almost surely, 2^{31371311317313} is an apocalyptic number.

It is an amenable number.

31371311317313 is a deficient number, since it is larger than the sum of its proper divisors (3864237108415).

31371311317313 is a wasteful number, since it uses less digits than its factorization.

31371311317313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365353.

The product of its digits is 35721, while the sum is 38.

The spelling of 31371311317313 in words is "thirty-one trillion, three hundred seventy-one billion, three hundred eleven million, three hundred seventeen thousand, three hundred thirteen".