129103882829 has 2 divisors, whose sum is σ = 129103882830. Its totient is φ = 129103882828.

The previous prime is 129103882763. The next prime is 129103882891. The reversal of 129103882829 is 928288301921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72363690025 + 56740192804 = 269005^2 + 238202^2 .

It is a cyclic number.

It is not a de Polignac number, because 129103882829 - 2¹² = 129103878733 is a prime.

It is a super-2 number, since 2×129103882829² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129103882529) 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, 64551941414 + 64551941415.

It is an arithmetic number, because the mean of its divisors is an integer number (64551941415).

Almost surely, 2^129103882829 is an apocalyptic number.

It is an amenable number.

129103882829 is a deficient number, since it is larger than the sum of its proper divisors (1).

129103882829 is an equidigital number, since it uses as much as digits as its factorization.

129103882829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 53.

The spelling of 129103882829 in words is "one hundred twenty-nine billion, one hundred three million, eight hundred eighty-two thousand, eight hundred twenty-nine".