131320414217 has 2 divisors, whose sum is σ = 131320414218. Its totient is φ = 131320414216.

The previous prime is 131320414187. The next prime is 131320414241. The reversal of 131320414217 is 712414023131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97325904841 + 33994509376 = 311971^2 + 184376^2 .

It is a cyclic number.

It is not a de Polignac number, because 131320414217 - 2²² = 131316219913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131320414217.

It is not a weakly prime, because it can be changed into another prime (131320414517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65660207108 + 65660207109.

It is an arithmetic number, because the mean of its divisors is an integer number (65660207109).

Almost surely, 2^131320414217 is an apocalyptic number.

It is an amenable number.

131320414217 is a deficient number, since it is larger than the sum of its proper divisors (1).

131320414217 is an equidigital number, since it uses as much as digits as its factorization.

131320414217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 131320414217 its reverse (712414023131), we get a palindrome (843734437348).

The spelling of 131320414217 in words is "one hundred thirty-one billion, three hundred twenty million, four hundred fourteen thousand, two hundred seventeen".