1298105431297 has 2 divisors, whose sum is σ = 1298105431298. Its totient is φ = 1298105431296.

The previous prime is 1298105431237. The next prime is 1298105431313. The reversal of 1298105431297 is 7921345018921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1158714462096 + 139390969201 = 1076436^2 + 373351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298105431297 - 2⁷ = 1298105431169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1298105431237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649052715648 + 649052715649.

It is an arithmetic number, because the mean of its divisors is an integer number (649052715649).

Almost surely, 2^{1298105431297} is an apocalyptic number.

It is an amenable number.

1298105431297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298105431297 is an equidigital number, since it uses as much as digits as its factorization.

1298105431297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 1298105431297 in words is "one trillion, two hundred ninety-eight billion, one hundred five million, four hundred thirty-one thousand, two hundred ninety-seven".