129959106445373 has 2 divisors, whose sum is σ = 129959106445374. Its totient is φ = 129959106445372.

The previous prime is 129959106445369. The next prime is 129959106445387. The reversal of 129959106445373 is 373544601959921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68045704036324 + 61913402409049 = 8248982^2 + 7868507^2 .

It is a cyclic number.

It is not a de Polignac number, because 129959106445373 - 2² = 129959106445369 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129959106445573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64979553222686 + 64979553222687.

It is an arithmetic number, because the mean of its divisors is an integer number (64979553222687).

Almost surely, 2^{129959106445373} is an apocalyptic number.

It is an amenable number.

129959106445373 is a deficient number, since it is larger than the sum of its proper divisors (1).

129959106445373 is an equidigital number, since it uses as much as digits as its factorization.

129959106445373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220449600, while the sum is 68.

The spelling of 129959106445373 in words is "one hundred twenty-nine trillion, nine hundred fifty-nine billion, one hundred six million, four hundred forty-five thousand, three hundred seventy-three".