13231040431 has 8 divisors (see below), whose sum is σ = 15917041280. Its totient is φ = 10744002648.

The previous prime is 13231040411. The next prime is 13231040477. The reversal of 13231040431 is 13404013231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13231040431 - 2²⁷ = 13096822703 is a prime.

It is a super-2 number, since 2×13231040431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231040411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49740621 + ... + 49740886.

It is an arithmetic number, because the mean of its divisors is an integer number (1989630160).

Almost surely, 2^13231040431 is an apocalyptic number.

13231040431 is a deficient number, since it is larger than the sum of its proper divisors (2686000849).

13231040431 is an equidigital number, since it uses as much as digits as its factorization.

13231040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99481533.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13231040431 its reverse (13404013231), we get a palindrome (26635053662).

The spelling of 13231040431 in words is "thirteen billion, two hundred thirty-one million, forty thousand, four hundred thirty-one".