13323321 has 24 divisors (see below), whose sum is σ = 21359520. Its totient is φ = 7934400.

The previous prime is 13323287. The next prime is 13323337. The reversal of 13323321 is 12332331.

13323321 is a `hidden beast` number, since 1 + 332 + 332 + 1 = 666.

13323321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13323321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13323294 and 13323303.

It is not an unprimeable number, because it can be changed into a prime (13323341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4701 + ... + 6981.

It is an arithmetic number, because the mean of its divisors is an integer number (889980).

Almost surely, 2^13323321 is an apocalyptic number.

13323321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13323321 is a deficient number, since it is larger than the sum of its proper divisors (8036199).

13323321 is a wasteful number, since it uses less digits than its factorization.

13323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357 (or 2354 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 13323321 is about 3650.1124640208. The cubic root of 13323321 is about 237.0668507672.

Adding to 13323321 its reverse (12332331), we get a palindrome (25655652).

The spelling of 13323321 in words is "thirteen million, three hundred twenty-three thousand, three hundred twenty-one".