13323121320013 has 4 divisors (see below), whose sum is σ = 13323142049920. Its totient is φ = 13323100590108.

The previous prime is 13323121319983. The next prime is 13323121320031. The reversal of 13323121320013 is 31002312132331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13323121320013 - 2⁴¹ = 11124098064461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13323121320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323121320053) 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, 9369003 + ... + 10696936.

It is an arithmetic number, because the mean of its divisors is an integer number (3330785512480).

Almost surely, 2^{13323121320013} is an apocalyptic number.

It is an amenable number.

13323121320013 is a deficient number, since it is larger than the sum of its proper divisors (20729907).

13323121320013 is an equidigital number, since it uses as much as digits as its factorization.

13323121320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20729906.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13323121320013 its reverse (31002312132331), we get a palindrome (44325433452344).

The spelling of 13323121320013 in words is "thirteen trillion, three hundred twenty-three billion, one hundred twenty-one million, three hundred twenty thousand, thirteen".