129034308731 has 2 divisors, whose sum is σ = 129034308732. Its totient is φ = 129034308730.

The previous prime is 129034308721. The next prime is 129034308773. The reversal of 129034308731 is 137803430921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129034308731 - 2¹⁸ = 129034046587 is a prime.

It is a super-2 number, since 2×129034308731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (129034308721) 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, 64517154365 + 64517154366.

It is an arithmetic number, because the mean of its divisors is an integer number (64517154366).

Almost surely, 2^129034308731 is an apocalyptic number.

129034308731 is a deficient number, since it is larger than the sum of its proper divisors (1).

129034308731 is an equidigital number, since it uses as much as digits as its factorization.

129034308731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 129034308731 in words is "one hundred twenty-nine billion, thirty-four million, three hundred eight thousand, seven hundred thirty-one".