12312331313 has 8 divisors (see below), whose sum is σ = 12527600832. Its totient is φ = 12097988496.

The previous prime is 12312331301. The next prime is 12312331337. The reversal of 12312331313 is 31313321321.

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 12312331313 - 2⁶ = 12312331249 is a prime.

It is a super-2 number, since 2×12312331313² (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 (12312331373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204845 + ... + 258042.

It is an arithmetic number, because the mean of its divisors is an integer number (1565950104).

Almost surely, 2^12312331313 is an apocalyptic number.

It is an amenable number.

12312331313 is a deficient number, since it is larger than the sum of its proper divisors (215269519).

12312331313 is an equidigital number, since it uses as much as digits as its factorization.

12312331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463351.

The product of its digits is 972, while the sum is 23.

Adding to 12312331313 its reverse (31313321321), we get a palindrome (43625652634).

The spelling of 12312331313 in words is "twelve billion, three hundred twelve million, three hundred thirty-one thousand, three hundred thirteen".