13321332321 has 8 divisors (see below), whose sum is σ = 19376483424. Its totient is φ = 8073534720.

The previous prime is 13321332313. The next prime is 13321332337. The reversal of 13321332321 is 12323312331.

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

It is not a de Polignac number, because 13321332321 - 2³ = 13321332313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13321332291 and 13321332300.

It is not an unprimeable number, because it can be changed into a prime (13321332391) 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, 201838336 + ... + 201838401.

It is an arithmetic number, because the mean of its divisors is an integer number (2422060428).

Almost surely, 2^13321332321 is an apocalyptic number.

13321332321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13321332321 is a deficient number, since it is larger than the sum of its proper divisors (6055151103).

13321332321 is a wasteful number, since it uses less digits than its factorization.

13321332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403676751.

The product of its digits is 1944, while the sum is 24.

Adding to 13321332321 its reverse (12323312331), we get a palindrome (25644644652).

The spelling of 13321332321 in words is "thirteen billion, three hundred twenty-one million, three hundred thirty-two thousand, three hundred twenty-one".