1305445236113 has 2 divisors, whose sum is σ = 1305445236114. Its totient is φ = 1305445236112.

The previous prime is 1305445236107. The next prime is 1305445236127. The reversal of 1305445236113 is 3116325445031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1299207869584 + 6237366529 = 1139828^2 + 78977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305445236113 - 2³⁰ = 1304371494289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1305445236103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652722618056 + 652722618057.

It is an arithmetic number, because the mean of its divisors is an integer number (652722618057).

Almost surely, 2^{1305445236113} is an apocalyptic number.

It is an amenable number.

1305445236113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305445236113 is an equidigital number, since it uses as much as digits as its factorization.

1305445236113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 1305445236113 in words is "one trillion, three hundred five billion, four hundred forty-five million, two hundred thirty-six thousand, one hundred thirteen".