12313152231 has 32 divisors (see below), whose sum is σ = 16897870080. Its totient is φ = 7972134144.

The previous prime is 12313152199. The next prime is 12313152233. The reversal of 12313152231 is 13225131321.

It is a happy number.

It is not a de Polignac number, because 12313152231 - 2⁵ = 12313152199 is a prime.

It is a super-2 number, since 2×12313152231² (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 (12313152233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10320571 + ... + 10321763.

It is an arithmetic number, because the mean of its divisors is an integer number (528058440).

Almost surely, 2^12313152231 is an apocalyptic number.

12313152231 is a deficient number, since it is larger than the sum of its proper divisors (4584717849).

12313152231 is a wasteful number, since it uses less digits than its factorization.

12313152231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855.

The product of its digits is 1080, while the sum is 24.

Adding to 12313152231 its reverse (13225131321), we get a palindrome (25538283552).

The spelling of 12313152231 in words is "twelve billion, three hundred thirteen million, one hundred fifty-two thousand, two hundred thirty-one".