12313323231 has 8 divisors (see below), whose sum is σ = 17910288384. Its totient is φ = 7462620120.

The previous prime is 12313323221. The next prime is 12313323233. The reversal of 12313323231 is 13232331321.

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

It is not a de Polignac number, because 12313323231 - 2⁵ = 12313323199 is a prime.

It is a super-2 number, since 2×12313323231² (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 (12313323233) 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, 186565471 + ... + 186565536.

It is an arithmetic number, because the mean of its divisors is an integer number (2238786048).

Almost surely, 2^12313323231 is an apocalyptic number.

12313323231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12313323231 is a deficient number, since it is larger than the sum of its proper divisors (5596965153).

12313323231 is a wasteful number, since it uses less digits than its factorization.

12313323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373131021.

The product of its digits is 1944, while the sum is 24.

Adding to 12313323231 its reverse (13232331321), we get a palindrome (25545654552).

The spelling of 12313323231 in words is "twelve billion, three hundred thirteen million, three hundred twenty-three thousand, two hundred thirty-one".