13000332320021 has 8 divisors (see below), whose sum is σ = 13245679349280. Its totient is φ = 12754987429392.

The previous prime is 13000332319969. The next prime is 13000332320029. The reversal of 13000332320021 is 12002323300031.

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 13000332320021 - 2¹⁸ = 13000332057877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13000332319975 and 13000332320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000332320029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17296010 + ... + 18031988.

It is an arithmetic number, because the mean of its divisors is an integer number (1655709918660).

Almost surely, 2^{13000332320021} is an apocalyptic number.

It is an amenable number.

13000332320021 is a deficient number, since it is larger than the sum of its proper divisors (245347029259).

13000332320021 is an equidigital number, since it uses as much as digits as its factorization.

13000332320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069315.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13000332320021 its reverse (12002323300031), we get a palindrome (25002655620052).

The spelling of 13000332320021 in words is "thirteen trillion, three hundred thirty-two million, three hundred twenty thousand, twenty-one".