129320418571 has 2 divisors, whose sum is σ = 129320418572. Its totient is φ = 129320418570.

The previous prime is 129320418553. The next prime is 129320418607. The reversal of 129320418571 is 175814023921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129320418571 - 2⁷ = 129320418443 is a prime.

It is not a weakly prime, because it can be changed into another prime (129320428571) 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, 64660209285 + 64660209286.

It is an arithmetic number, because the mean of its divisors is an integer number (64660209286).

Almost surely, 2^129320418571 is an apocalyptic number.

129320418571 is a deficient number, since it is larger than the sum of its proper divisors (1).

129320418571 is an equidigital number, since it uses as much as digits as its factorization.

129320418571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 129320418571 in words is "one hundred twenty-nine billion, three hundred twenty million, four hundred eighteen thousand, five hundred seventy-one".