13333320321 has 4 divisors (see below), whose sum is σ = 17777760432. Its totient is φ = 8888880212.

The previous prime is 13333320307. The next prime is 13333320323. The reversal of 13333320321 is 12302333331.

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 13333320321 - 2⁶ = 13333320257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13333320291 and 13333320300.

It is not an unprimeable number, because it can be changed into a prime (13333320323) 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, 2222220051 + ... + 2222220056.

It is an arithmetic number, because the mean of its divisors is an integer number (4444440108).

Almost surely, 2^13333320321 is an apocalyptic number.

It is an amenable number.

13333320321 is a deficient number, since it is larger than the sum of its proper divisors (4444440111).

13333320321 is an equidigital number, since it uses as much as digits as its factorization.

13333320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444440110.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 13333320321 its reverse (12302333331), we get a palindrome (25635653652).

The spelling of 13333320321 in words is "thirteen billion, three hundred thirty-three million, three hundred twenty thousand, three hundred twenty-one".