129020179319 has 2 divisors, whose sum is σ = 129020179320. Its totient is φ = 129020179318.

The previous prime is 129020179313. The next prime is 129020179349. The reversal of 129020179319 is 913971020921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129020179319 - 2⁸ = 129020179063 is a prime.

It is a super-2 number, since 2×129020179319² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 129020179319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129020179313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64510089659 + 64510089660.

It is an arithmetic number, because the mean of its divisors is an integer number (64510089660).

Almost surely, 2^129020179319 is an apocalyptic number.

129020179319 is a deficient number, since it is larger than the sum of its proper divisors (1).

129020179319 is an equidigital number, since it uses as much as digits as its factorization.

129020179319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 44.

The spelling of 129020179319 in words is "one hundred twenty-nine billion, twenty million, one hundred seventy-nine thousand, three hundred nineteen".