13020478179209 has 2 divisors, whose sum is σ = 13020478179210. Its totient is φ = 13020478179208.

The previous prime is 13020478179151. The next prime is 13020478179253. The reversal of 13020478179209 is 90297187402031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11998104413584 + 1022373765625 = 3463828^2 + 1011125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020478179209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13020478172209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510239089604 + 6510239089605.

It is an arithmetic number, because the mean of its divisors is an integer number (6510239089605).

Almost surely, 2^{13020478179209} is an apocalyptic number.

It is an amenable number.

13020478179209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13020478179209 is an equidigital number, since it uses as much as digits as its factorization.

13020478179209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 13020478179209 in words is "thirteen trillion, twenty billion, four hundred seventy-eight million, one hundred seventy-nine thousand, two hundred nine".