13233221329 has 4 divisors (see below), whose sum is σ = 13419604800. Its totient is φ = 13046837860.

The previous prime is 13233221279. The next prime is 13233221371. The reversal of 13233221329 is 92312233231.

13233221329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13233221329 - 2⁹ = 13233220817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13233221329.

It is not an unprimeable number, because it can be changed into a prime (13233221129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93191629 + ... + 93191770.

It is an arithmetic number, because the mean of its divisors is an integer number (3354901200).

Almost surely, 2^13233221329 is an apocalyptic number.

It is an amenable number.

13233221329 is a deficient number, since it is larger than the sum of its proper divisors (186383471).

13233221329 is an equidigital number, since it uses as much as digits as its factorization.

13233221329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186383470.

The product of its digits is 11664, while the sum is 31.

The spelling of 13233221329 in words is "thirteen billion, two hundred thirty-three million, two hundred twenty-one thousand, three hundred twenty-nine".