131002131024517 has 2 divisors, whose sum is σ = 131002131024518. Its totient is φ = 131002131024516.

The previous prime is 131002131024497. The next prime is 131002131024601. The reversal of 131002131024517 is 715420131200131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88762608374881 + 42239522649636 = 9421391^2 + 6499194^2 .

It is a cyclic number.

It is not a de Polignac number, because 131002131024517 - 2²⁷ = 131001996806789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131002131024217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501065512258 + 65501065512259.

It is an arithmetic number, because the mean of its divisors is an integer number (65501065512259).

Almost surely, 2^{131002131024517} is an apocalyptic number.

It is an amenable number.

131002131024517 is a deficient number, since it is larger than the sum of its proper divisors (1).

131002131024517 is an equidigital number, since it uses as much as digits as its factorization.

131002131024517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 131002131024517 its reverse (715420131200131), we get a palindrome (846422262224648).

The spelling of 131002131024517 in words is "one hundred thirty-one trillion, two billion, one hundred thirty-one million, twenty-four thousand, five hundred seventeen".