13321133209 has 4 divisors (see below), whose sum is σ = 13780482660. Its totient is φ = 12861783760.

The previous prime is 13321133153. The next prime is 13321133239. The reversal of 13321133209 is 90233112331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7234012809 + 6087120400 = 85053^2 + 78020^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321133209 - 2⁷ = 13321133081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13321133239) 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 3 ways as a sum of consecutive naturals, for example, 229674682 + ... + 229674739.

It is an arithmetic number, because the mean of its divisors is an integer number (3445120665).

Almost surely, 2^13321133209 is an apocalyptic number.

It is an amenable number.

13321133209 is a deficient number, since it is larger than the sum of its proper divisors (459349451).

13321133209 is an equidigital number, since it uses as much as digits as its factorization.

13321133209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459349450.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 13321133209 in words is "thirteen billion, three hundred twenty-one million, one hundred thirty-three thousand, two hundred nine".