13320434000021 has 4 divisors (see below), whose sum is σ = 13320472325952. Its totient is φ = 13320395674092.

The previous prime is 13320433999997. The next prime is 13320434000099. The reversal of 13320434000021 is 12000043402331.

13320434000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-13320434000021 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 (13320434002021) 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, 18636815 + ... + 19338348.

It is an arithmetic number, because the mean of its divisors is an integer number (3330118081488).

Almost surely, 2^{13320434000021} is an apocalyptic number.

It is an amenable number.

13320434000021 is a deficient number, since it is larger than the sum of its proper divisors (38325931).

13320434000021 is an equidigital number, since it uses as much as digits as its factorization.

13320434000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38325930.

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

Adding to 13320434000021 its reverse (12000043402331), we get a palindrome (25320477402352).

The spelling of 13320434000021 in words is "thirteen trillion, three hundred twenty billion, four hundred thirty-four million, twenty-one", and thus it is an aban number.