13320232400021 has 8 divisors (see below), whose sum is σ = 14021362000800. Its totient is φ = 12619109273040.

The previous prime is 13320232400003. The next prime is 13320232400023. The reversal of 13320232400021 is 12000423202331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13320232400021 - 2³⁸ = 13045354493077 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 13320232400021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320232400023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2933231 + ... + 5936691.

It is an arithmetic number, because the mean of its divisors is an integer number (1752670250100).

Almost surely, 2^{13320232400021} is an apocalyptic number.

It is an amenable number.

13320232400021 is a deficient number, since it is larger than the sum of its proper divisors (701129600779).

13320232400021 is a wasteful number, since it uses less digits than its factorization.

13320232400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236899.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13320232400021 its reverse (12000423202331), we get a palindrome (25320655602352).

The spelling of 13320232400021 in words is "thirteen trillion, three hundred twenty billion, two hundred thirty-two million, four hundred thousand, twenty-one".