31545233254513 has 12 divisors (see below), whose sum is σ = 35974251231408. Its totient is φ = 27430637607560.

The previous prime is 31545233254471. The next prime is 31545233254529.

31545233254513 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31545233254513 - 2²⁵ = 31545199700081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31545233254583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2710531495 + ... + 2710543132.

It is an arithmetic number, because the mean of its divisors is an integer number (2997854269284).

Almost surely, 2^{31545233254513} is an apocalyptic number.

It is an amenable number.

31545233254513 is a deficient number, since it is larger than the sum of its proper divisors (4429017976895).

31545233254513 is a wasteful number, since it uses less digits than its factorization.

31545233254513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421074684 (or 5421074661 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 46.

The spelling of 31545233254513 in words is "thirty-one trillion, five hundred forty-five billion, two hundred thirty-three million, two hundred fifty-four thousand, five hundred thirteen".