13236840245129 has 2 divisors, whose sum is σ = 13236840245130. Its totient is φ = 13236840245128.

The previous prime is 13236840245051. The next prime is 13236840245131. The reversal of 13236840245129 is 92154204863231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9797669995129 + 3439170250000 = 3130123^2 + 1854500^2 .

It is a cyclic number.

It is not a de Polignac number, because 13236840245129 - 2⁴⁰ = 12137328617353 is a prime.

Together with 13236840245131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13236840245329) 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, 6618420122564 + 6618420122565.

It is an arithmetic number, because the mean of its divisors is an integer number (6618420122565).

Almost surely, 2^{13236840245129} is an apocalyptic number.

It is an amenable number.

13236840245129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13236840245129 is an equidigital number, since it uses as much as digits as its factorization.

13236840245129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 13236840245129 in words is "thirteen trillion, two hundred thirty-six billion, eight hundred forty million, two hundred forty-five thousand, one hundred twenty-nine".