131045253231017 has 2 divisors, whose sum is σ = 131045253231018. Its totient is φ = 131045253231016.

The previous prime is 131045253230999. The next prime is 131045253231059. The reversal of 131045253231017 is 710132352540131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126838410209536 + 4206843021481 = 11262256^2 + 2051059^2 .

It is a cyclic number.

It is not a de Polignac number, because 131045253231017 - 2²⁰ = 131045252182441 is a prime.

It is not a weakly prime, because it can be changed into another prime (131045253231517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65522626615508 + 65522626615509.

It is an arithmetic number, because the mean of its divisors is an integer number (65522626615509).

Almost surely, 2^{131045253231017} is an apocalyptic number.

It is an amenable number.

131045253231017 is a deficient number, since it is larger than the sum of its proper divisors (1).

131045253231017 is an equidigital number, since it uses as much as digits as its factorization.

131045253231017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 131045253231017 in words is "one hundred thirty-one trillion, forty-five billion, two hundred fifty-three million, two hundred thirty-one thousand, seventeen".