12313113223231 has 4 divisors (see below), whose sum is σ = 12362169451464. Its totient is φ = 12264056995000.

The previous prime is 12313113223217. The next prime is 12313113223249. The reversal of 12313113223231 is 13232231131321.

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 12313113223231 - 2²³ = 12313104834623 is a prime.

It is a super-2 number, since 2×12313113223231² (a number of 27 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 12313113223231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313113223261) 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, 24528113740 + ... + 24528114241.

It is an arithmetic number, because the mean of its divisors is an integer number (3090542362866).

Almost surely, 2^{12313113223231} is an apocalyptic number.

12313113223231 is a deficient number, since it is larger than the sum of its proper divisors (49056228233).

12313113223231 is an equidigital number, since it uses as much as digits as its factorization.

12313113223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49056228232.

The product of its digits is 3888, while the sum is 28.

Adding to 12313113223231 its reverse (13232231131321), we get a palindrome (25545344354552).

The spelling of 12313113223231 in words is "twelve trillion, three hundred thirteen billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred thirty-one".