12331303021313 has 4 divisors (see below), whose sum is σ = 12331685336580. Its totient is φ = 12330920706048.

The previous prime is 12331303021231. The next prime is 12331303021333. The reversal of 12331303021313 is 31312030313321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7204194187969 + 5127108833344 = 2684063^2 + 2264312^2 .

It is a cyclic number.

It is not a de Polignac number, because 12331303021313 - 2¹⁸ = 12331302759169 is a prime.

It is a super-2 number, since 2×12331303021313² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331303021333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191109248 + ... + 191173761.

It is an arithmetic number, because the mean of its divisors is an integer number (3082921334145).

Almost surely, 2^{12331303021313} is an apocalyptic number.

It is an amenable number.

12331303021313 is a deficient number, since it is larger than the sum of its proper divisors (382315267).

12331303021313 is an equidigital number, since it uses as much as digits as its factorization.

12331303021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382315266.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 12331303021313 its reverse (31312030313321), we get a palindrome (43643333334634).

The spelling of 12331303021313 in words is "twelve trillion, three hundred thirty-one billion, three hundred three million, twenty-one thousand, three hundred thirteen".