13712323231 has 4 divisors (see below), whose sum is σ = 13712699952. Its totient is φ = 13711946512.

The previous prime is 13712323159. The next prime is 13712323243. The reversal of 13712323231 is 13232321731.

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 13712323231 - 2²⁵ = 13678768799 is a prime.

It is a super-2 number, since 2×13712323231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13712323231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13712323271) 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, 127126 + ... + 208771.

It is an arithmetic number, because the mean of its divisors is an integer number (3428174988).

Almost surely, 2^13712323231 is an apocalyptic number.

13712323231 is a deficient number, since it is larger than the sum of its proper divisors (376721).

13712323231 is an equidigital number, since it uses as much as digits as its factorization.

13712323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376720.

The product of its digits is 4536, while the sum is 28.

Adding to 13712323231 its reverse (13232321731), we get a palindrome (26944644962).

The spelling of 13712323231 in words is "thirteen billion, seven hundred twelve million, three hundred twenty-three thousand, two hundred thirty-one".