13044420209 has 2 divisors, whose sum is σ = 13044420210. Its totient is φ = 13044420208.

The previous prime is 13044420167. The next prime is 13044420217. The reversal of 13044420209 is 90202444031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11577760000 + 1466660209 = 107600^2 + 38297^2 .

It is a cyclic number.

It is not a de Polignac number, because 13044420209 - 2¹² = 13044416113 is a prime.

It is not a weakly prime, because it can be changed into another prime (13044420269) 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 as a sum of consecutive naturals, namely, 6522210104 + 6522210105.

It is an arithmetic number, because the mean of its divisors is an integer number (6522210105).

Almost surely, 2^13044420209 is an apocalyptic number.

It is an amenable number.

13044420209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13044420209 is an equidigital number, since it uses as much as digits as its factorization.

13044420209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 13044420209 in words is "thirteen billion, forty-four million, four hundred twenty thousand, two hundred nine".