31298534813 has 32 divisors (see below), whose sum is σ = 38868377856. Its totient is φ = 24541429248.

The previous prime is 31298534807. The next prime is 31298534821. The reversal of 31298534813 is 31843589213.

It is not a de Polignac number, because 31298534813 - 2⁶ = 31298534749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31298534893) 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, 5529881 + ... + 5535537.

It is an arithmetic number, because the mean of its divisors is an integer number (1214636808).

Almost surely, 2^31298534813 is an apocalyptic number.

It is an amenable number.

31298534813 is a deficient number, since it is larger than the sum of its proper divisors (7569843043).

31298534813 is a wasteful number, since it uses less digits than its factorization.

31298534813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6213.

The product of its digits is 622080, while the sum is 47.

The spelling of 31298534813 in words is "thirty-one billion, two hundred ninety-eight million, five hundred thirty-four thousand, eight hundred thirteen".