13307309909 has 2 divisors, whose sum is σ = 13307309910. Its totient is φ = 13307309908.

The previous prime is 13307309903. The next prime is 13307309987. The reversal of 13307309909 is 90990370331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13196954884 + 110355025 = 114878^2 + 10505^2 .

It is a cyclic number.

It is not a de Polignac number, because 13307309909 - 2²⁴ = 13290532693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13307309909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13307309903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6653654954 + 6653654955.

It is an arithmetic number, because the mean of its divisors is an integer number (6653654955).

Almost surely, 2^13307309909 is an apocalyptic number.

It is an amenable number.

13307309909 is a deficient number, since it is larger than the sum of its proper divisors (1).

13307309909 is an equidigital number, since it uses as much as digits as its factorization.

13307309909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137781, while the sum is 44.

The spelling of 13307309909 in words is "thirteen billion, three hundred seven million, three hundred nine thousand, nine hundred nine".