13304313400021 has 24 divisors (see below), whose sum is σ = 15840316527872. Its totient is φ = 10943171452800.

The previous prime is 13304313400019. The next prime is 13304313400061. The reversal of 13304313400021 is 12000431340331.

It is not a de Polignac number, because 13304313400021 - 2¹ = 13304313400019 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 (13304313400061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8549805 + ... + 9985378.

Almost surely, 2^{13304313400021} is an apocalyptic number.

It is an amenable number.

13304313400021 is a deficient number, since it is larger than the sum of its proper divisors (2536003127851).

13304313400021 is an equidigital number, since it uses as much as digits as its factorization.

13304313400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18535333 (or 18535292 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13304313400021 its reverse (12000431340331), we get a palindrome (25304744740352).

The spelling of 13304313400021 in words is "thirteen trillion, three hundred four billion, three hundred thirteen million, four hundred thousand, twenty-one".