13231031193 has 12 divisors (see below), whose sum is σ = 19116740500. Its totient is φ = 8818263936.

The previous prime is 13231031171. The next prime is 13231031207. The reversal of 13231031193 is 39113013231.

13231031193 is a `hidden beast` number, since 1 + 32 + 310 + 311 + 9 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2200360464 + 11030670729 = 46908^2 + 105027^2 .

It is not a de Polignac number, because 13231031193 - 2²¹ = 13228934041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231031113) 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, 167068 + ... + 233181.

Almost surely, 2^13231031193 is an apocalyptic number.

It is an amenable number.

13231031193 is a deficient number, since it is larger than the sum of its proper divisors (5885709307).

13231031193 is a wasteful number, since it uses less digits than its factorization.

13231031193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403928 (or 403925 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The spelling of 13231031193 in words is "thirteen billion, two hundred thirty-one million, thirty-one thousand, one hundred ninety-three".