131320002031217 has 2 divisors, whose sum is σ = 131320002031218. Its totient is φ = 131320002031216.

The previous prime is 131320002031201. The next prime is 131320002031241. The reversal of 131320002031217 is 712130200023131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95224887288976 + 36095114742241 = 9758324^2 + 6007921^2 .

It is a cyclic number.

It is not a de Polignac number, because 131320002031217 - 2⁴ = 131320002031201 is a prime.

It is not a weakly prime, because it can be changed into another prime (131320002031417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65660001015608 + 65660001015609.

It is an arithmetic number, because the mean of its divisors is an integer number (65660001015609).

Almost surely, 2^{131320002031217} is an apocalyptic number.

It is an amenable number.

131320002031217 is a deficient number, since it is larger than the sum of its proper divisors (1).

131320002031217 is an equidigital number, since it uses as much as digits as its factorization.

131320002031217 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 26.

Adding to 131320002031217 its reverse (712130200023131), we get a palindrome (843450202054348).

The spelling of 131320002031217 in words is "one hundred thirty-one trillion, three hundred twenty billion, two million, thirty-one thousand, two hundred seventeen".