1320331330013 has 2 divisors, whose sum is σ = 1320331330014. Its totient is φ = 1320331330012.

The previous prime is 1320331330007. The next prime is 1320331330039. The reversal of 1320331330013 is 3100331330231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1254977986564 + 65353343449 = 1120258^2 + 255643^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320331330013 - 2⁴ = 1320331329997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320331330063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660165665006 + 660165665007.

It is an arithmetic number, because the mean of its divisors is an integer number (660165665007).

Almost surely, 2^{1320331330013} is an apocalyptic number.

It is an amenable number.

1320331330013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320331330013 is an equidigital number, since it uses as much as digits as its factorization.

1320331330013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 1320331330013 its reverse (3100331330231), we get a palindrome (4420662660244).

The spelling of 1320331330013 in words is "one trillion, three hundred twenty billion, three hundred thirty-one million, three hundred thirty thousand, thirteen".