129505811059 has 2 divisors, whose sum is σ = 129505811060. Its totient is φ = 129505811058.

The previous prime is 129505811003. The next prime is 129505811069. The reversal of 129505811059 is 950118505921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129505811059 - 2²³ = 129497422451 is a prime.

It is not a weakly prime, because it can be changed into another prime (129505811069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64752905529 + 64752905530.

It is an arithmetic number, because the mean of its divisors is an integer number (64752905530).

Almost surely, 2^129505811059 is an apocalyptic number.

129505811059 is a deficient number, since it is larger than the sum of its proper divisors (1).

129505811059 is an equidigital number, since it uses as much as digits as its factorization.

129505811059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 46.

The spelling of 129505811059 in words is "one hundred twenty-nine billion, five hundred five million, eight hundred eleven thousand, fifty-nine".