1301791265513 has 2 divisors, whose sum is σ = 1301791265514. Its totient is φ = 1301791265512.

The previous prime is 1301791265477. The next prime is 1301791265539. The reversal of 1301791265513 is 3155621971031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1278701855209 + 23089410304 = 1130797^2 + 151952^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301791265513 - 2¹⁰ = 1301791264489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1301791265813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650895632756 + 650895632757.

It is an arithmetic number, because the mean of its divisors is an integer number (650895632757).

Almost surely, 2^{1301791265513} is an apocalyptic number.

It is an amenable number.

1301791265513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301791265513 is an equidigital number, since it uses as much as digits as its factorization.

1301791265513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 1301791265513 in words is "one trillion, three hundred one billion, seven hundred ninety-one million, two hundred sixty-five thousand, five hundred thirteen".