13000223320021 has 4 divisors (see below), whose sum is σ = 14857398080032. Its totient is φ = 11143048560012.

The previous prime is 13000223320013. The next prime is 13000223320043. The reversal of 13000223320021 is 12002332200031.

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 not a de Polignac number, because 13000223320021 - 2³ = 13000223320013 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 (13000223320061) 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, 928587379995 + ... + 928587380008.

It is an arithmetic number, because the mean of its divisors is an integer number (3714349520008).

Almost surely, 2^{13000223320021} is an apocalyptic number.

It is an amenable number.

13000223320021 is a deficient number, since it is larger than the sum of its proper divisors (1857174760011).

13000223320021 is an equidigital number, since it uses as much as digits as its factorization.

13000223320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857174760010.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13000223320021 its reverse (12002332200031), we get a palindrome (25002555520052).

The spelling of 13000223320021 in words is "thirteen trillion, two hundred twenty-three million, three hundred twenty thousand, twenty-one".