12312310331 has 16 divisors (see below), whose sum is σ = 12777370368. Its totient is φ = 11851660800.

The previous prime is 12312310313. The next prime is 12312310349. The reversal of 12312310331 is 13301321321.

It is an interprime number because it is at equal distance from previous prime (12312310313) and next prime (12312310349).

It is a cyclic number.

It is not a de Polignac number, because 12312310331 - 2¹⁸ = 12312048187 is a prime.

It is a super-2 number, since 2×12312310331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312310301) 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 15 ways as a sum of consecutive naturals, for example, 7429655 + ... + 7431311.

It is an arithmetic number, because the mean of its divisors is an integer number (798585648).

Almost surely, 2^12312310331 is an apocalyptic number.

12312310331 is a deficient number, since it is larger than the sum of its proper divisors (465060037).

12312310331 is a wasteful number, since it uses less digits than its factorization.

12312310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12312310331 its reverse (13301321321), we get a palindrome (25613631652).

The spelling of 12312310331 in words is "twelve billion, three hundred twelve million, three hundred ten thousand, three hundred thirty-one".