131201321132017 has 2 divisors, whose sum is σ = 131201321132018. Its totient is φ = 131201321132016.

The previous prime is 131201321131981. The next prime is 131201321132033. The reversal of 131201321132017 is 710231123102131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131109805201761 + 91515930256 = 11450319^2 + 302516^2 .

It is an emirp because it is prime and its reverse (710231123102131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131201321132017 - 2²³ = 131201312743409 is a prime.

It is not a weakly prime, because it can be changed into another prime (131201321132047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600660566008 + 65600660566009.

It is an arithmetic number, because the mean of its divisors is an integer number (65600660566009).

Almost surely, 2^{131201321132017} is an apocalyptic number.

It is an amenable number.

131201321132017 is a deficient number, since it is larger than the sum of its proper divisors (1).

131201321132017 is an equidigital number, since it uses as much as digits as its factorization.

131201321132017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 131201321132017 its reverse (710231123102131), we get a palindrome (841432444234148).

The spelling of 131201321132017 in words is "one hundred thirty-one trillion, two hundred one billion, three hundred twenty-one million, one hundred thirty-two thousand, seventeen".