12313212031 has 8 divisors (see below), whose sum is σ = 12525728400. Its totient is φ = 12100823040.

The previous prime is 12313212017. The next prime is 12313212071. The reversal of 12313212031 is 13021231321.

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

It is a cyclic number.

It is not a de Polignac number, because 12313212031 - 2⁷ = 12313211903 is a prime.

It is a super-2 number, since 2×12313212031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313212071) 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 7 ways as a sum of consecutive naturals, for example, 174591 + ... + 234751.

It is an arithmetic number, because the mean of its divisors is an integer number (1565716050).

Almost surely, 2^12313212031 is an apocalyptic number.

12313212031 is a deficient number, since it is larger than the sum of its proper divisors (212516369).

12313212031 is an equidigital number, since it uses as much as digits as its factorization.

12313212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63689.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12313212031 its reverse (13021231321), we get a palindrome (25334443352).

The spelling of 12313212031 in words is "twelve billion, three hundred thirteen million, two hundred twelve thousand, thirty-one".