31534046013 has 24 divisors (see below), whose sum is σ = 43653126400. Its totient is φ = 20247486336.

The previous prime is 31534045999. The next prime is 31534046023. The reversal of 31534046013 is 31064043513.

It is not a de Polignac number, because 31534046013 - 2⁴ = 31534045997 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 (31534046023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1016628 + ... + 1047186.

Almost surely, 2^31534046013 is an apocalyptic number.

It is an amenable number.

31534046013 is a deficient number, since it is larger than the sum of its proper divisors (12119080387).

31534046013 is a wasteful number, since it uses less digits than its factorization.

31534046013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31029 (or 31000 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 31534046013 its reverse (31064043513), we get a palindrome (62598089526).

The spelling of 31534046013 in words is "thirty-one billion, five hundred thirty-four million, forty-six thousand, thirteen".