13231455031 has 4 divisors (see below), whose sum is σ = 13231693912. Its totient is φ = 13231216152.

The previous prime is 13231454987. The next prime is 13231455047. The reversal of 13231455031 is 13055413231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13231455031 - 2¹⁹ = 13230930743 is a prime.

It is a super-2 number, since 2×13231455031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231455131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11476 + ... + 163078.

It is an arithmetic number, because the mean of its divisors is an integer number (3307923478).

Almost surely, 2^13231455031 is an apocalyptic number.

13231455031 is a deficient number, since it is larger than the sum of its proper divisors (238881).

13231455031 is an equidigital number, since it uses as much as digits as its factorization.

13231455031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238880.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 13231455031 its reverse (13055413231), we get a palindrome (26286868262).

The spelling of 13231455031 in words is "thirteen billion, two hundred thirty-one million, four hundred fifty-five thousand, thirty-one".