13233321 has 16 divisors (see below), whose sum is σ = 19828800. Its totient is φ = 8721504.

The previous prime is 13233313. The next prime is 13233331. The reversal of 13233321 is 12333231.

It is not a de Polignac number, because 13233321 - 2³ = 13233313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13233294 and 13233303.

It is not an unprimeable number, because it can be changed into a prime (13233331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351 + ... + 5156.

It is an arithmetic number, because the mean of its divisors is an integer number (1239300).

Almost surely, 2^13233321 is an apocalyptic number.

It is an amenable number.

13233321 is a deficient number, since it is larger than the sum of its proper divisors (6595479).

13233321 is an equidigital number, since it uses as much as digits as its factorization.

13233321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605 (or 5599 counting only the distinct ones).

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

The square root of 13233321 is about 3637.7631863550. The cubic root of 13233321 is about 236.5318430217.

Adding to 13233321 its reverse (12333231), we get a palindrome (25566552).

The spelling of 13233321 in words is "thirteen million, two hundred thirty-three thousand, three hundred twenty-one".