12031330320013 has 2 divisors, whose sum is σ = 12031330320014. Its totient is φ = 12031330320012.

The previous prime is 12031330319989. The next prime is 12031330320017. The reversal of 12031330320013 is 31002303313021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9991680765444 + 2039649554569 = 3160962^2 + 1428163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031330320013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031330320017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015665160006 + 6015665160007.

It is an arithmetic number, because the mean of its divisors is an integer number (6015665160007).

Almost surely, 2^{12031330320013} is an apocalyptic number.

It is an amenable number.

12031330320013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031330320013 is an equidigital number, since it uses as much as digits as its factorization.

12031330320013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12031330320013 its reverse (31002303313021), we get a palindrome (43033633633034).

The spelling of 12031330320013 in words is "twelve trillion, thirty-one billion, three hundred thirty million, three hundred twenty thousand, thirteen".