13020332321 has 16 divisors (see below), whose sum is σ = 13475645568. Its totient is φ = 12572227200.

The previous prime is 13020332287. The next prime is 13020332323. The reversal of 13020332321 is 12323302031.

It is a cyclic number.

It is not a de Polignac number, because 13020332321 - 2¹⁴ = 13020315937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13020332293 and 13020332302.

It is not an unprimeable number, because it can be changed into a prime (13020332323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1689086 + ... + 1696776.

It is an arithmetic number, because the mean of its divisors is an integer number (842227848).

Almost surely, 2^13020332321 is an apocalyptic number.

It is an amenable number.

13020332321 is a deficient number, since it is larger than the sum of its proper divisors (455313247).

13020332321 is a wasteful number, since it uses less digits than its factorization.

13020332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8152.

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

Adding to 13020332321 its reverse (12323302031), we get a palindrome (25343634352).

The spelling of 13020332321 in words is "thirteen billion, twenty million, three hundred thirty-two thousand, three hundred twenty-one".