13313000021 has 4 divisors (see below), whose sum is σ = 13392718752. Its totient is φ = 13233281292.

The previous prime is 13313000011. The next prime is 13313000089. The reversal of 13313000021 is 12000031331.

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 13313000021 - 2²⁶ = 13245891157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313000011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39859115 + ... + 39859448.

It is an arithmetic number, because the mean of its divisors is an integer number (3348179688).

Almost surely, 2^13313000021 is an apocalyptic number.

It is an amenable number.

13313000021 is a deficient number, since it is larger than the sum of its proper divisors (79718731).

13313000021 is an equidigital number, since it uses as much as digits as its factorization.

13313000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79718730.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13313000021 its reverse (12000031331), we get a palindrome (25313031352).

The spelling of 13313000021 in words is "thirteen billion, three hundred thirteen million, twenty-one", and thus it is an aban number.