13313231020013 has 4 divisors (see below), whose sum is σ = 13398028669980. Its totient is φ = 13228433370048.

The previous prime is 13313231019997. The next prime is 13313231020031. The reversal of 13313231020013 is 31002013231331.

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 7702079168644 + 5611151851369 = 2775262^2 + 2368787^2 .

It is a cyclic number.

It is not a de Polignac number, because 13313231020013 - 2⁴ = 13313231019997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313231020073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42398824748 + ... + 42398825061.

It is an arithmetic number, because the mean of its divisors is an integer number (3349507167495).

Almost surely, 2^{13313231020013} is an apocalyptic number.

It is an amenable number.

13313231020013 is a deficient number, since it is larger than the sum of its proper divisors (84797649967).

13313231020013 is an equidigital number, since it uses as much as digits as its factorization.

13313231020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84797649966.

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

Adding to 13313231020013 its reverse (31002013231331), we get a palindrome (44315244251344).

The spelling of 13313231020013 in words is "thirteen trillion, three hundred thirteen billion, two hundred thirty-one million, twenty thousand, thirteen".