13313400021 has 12 divisors (see below), whose sum is σ = 19517489472. Its totient is φ = 8743127976.

The previous prime is 13313400007. The next prime is 13313400047. The reversal of 13313400021 is 12000431331.

13313400021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13313400021 - 2⁵ = 13313399989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13313399967 and 13313400003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313401021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11038701 + ... + 11039906.

It is an arithmetic number, because the mean of its divisors is an integer number (1626457456).

Almost surely, 2^13313400021 is an apocalyptic number.

It is an amenable number.

13313400021 is a deficient number, since it is larger than the sum of its proper divisors (6204089451).

13313400021 is a wasteful number, since it uses less digits than its factorization.

13313400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22078680 (or 22078677 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13313400021 its reverse (12000431331), we get a palindrome (25313831352).

The spelling of 13313400021 in words is "thirteen billion, three hundred thirteen million, four hundred thousand, twenty-one".