231313223113 has 4 divisors (see below), whose sum is σ = 264357969280. Its totient is φ = 198268476948.

The previous prime is 231313223093. The next prime is 231313223117. The reversal of 231313223113 is 311322313132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231313223113 - 2⁵ = 231313223081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231313223117) 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, 16522373073 + ... + 16522373086.

It is an arithmetic number, because the mean of its divisors is an integer number (66089492320).

Almost surely, 2^231313223113 is an apocalyptic number.

It is an amenable number.

231313223113 is a deficient number, since it is larger than the sum of its proper divisors (33044746167).

231313223113 is an equidigital number, since it uses as much as digits as its factorization.

231313223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33044746166.

The product of its digits is 1944, while the sum is 25.

Adding to 231313223113 its reverse (311322313132), we get a palindrome (542635536245).

The spelling of 231313223113 in words is "two hundred thirty-one billion, three hundred thirteen million, two hundred twenty-three thousand, one hundred thirteen".