129560403017 has 2 divisors, whose sum is σ = 129560403018. Its totient is φ = 129560403016.

The previous prime is 129560402999. The next prime is 129560403019. The reversal of 129560403017 is 710304065921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118705055296 + 10855347721 = 344536^2 + 104189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129560403017 is a prime.

Together with 129560403019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129560403019) 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, 64780201508 + 64780201509.

It is an arithmetic number, because the mean of its divisors is an integer number (64780201509).

Almost surely, 2^129560403017 is an apocalyptic number.

It is an amenable number.

129560403017 is a deficient number, since it is larger than the sum of its proper divisors (1).

129560403017 is an equidigital number, since it uses as much as digits as its factorization.

129560403017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

Adding to 129560403017 its reverse (710304065921), we get a palindrome (839864468938).

The spelling of 129560403017 in words is "one hundred twenty-nine billion, five hundred sixty million, four hundred three thousand, seventeen".