13331442209 has 2 divisors, whose sum is σ = 13331442210. Its totient is φ = 13331442208.

The previous prime is 13331442203. The next prime is 13331442217. The reversal of 13331442209 is 90224413331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9990602209 + 3340840000 = 99953^2 + 57800^2 .

It is a cyclic number.

It is not a de Polignac number, because 13331442209 - 2⁴ = 13331442193 is a prime.

It is not a weakly prime, because it can be changed into another prime (13331442203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665721104 + 6665721105.

It is an arithmetic number, because the mean of its divisors is an integer number (6665721105).

Almost surely, 2^13331442209 is an apocalyptic number.

It is an amenable number.

13331442209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331442209 is an equidigital number, since it uses as much as digits as its factorization.

13331442209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 13331442209 in words is "thirteen billion, three hundred thirty-one million, four hundred forty-two thousand, two hundred nine".