131131244242417 has 2 divisors, whose sum is σ = 131131244242418. Its totient is φ = 131131244242416.

The previous prime is 131131244242357. The next prime is 131131244242459. The reversal of 131131244242417 is 714242442131131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122116622308321 + 9014621934096 = 11050639^2 + 3002436^2 .

It is a cyclic number.

It is not a de Polignac number, because 131131244242417 - 2⁷ = 131131244242289 is a prime.

It is a super-2 number, since 2×131131244242417² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131131244242417.

It is not a weakly prime, because it can be changed into another prime (131131244242477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65565622121208 + 65565622121209.

It is an arithmetic number, because the mean of its divisors is an integer number (65565622121209).

Almost surely, 2^{131131244242417} is an apocalyptic number.

It is an amenable number.

131131244242417 is a deficient number, since it is larger than the sum of its proper divisors (1).

131131244242417 is an equidigital number, since it uses as much as digits as its factorization.

131131244242417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

Adding to 131131244242417 its reverse (714242442131131), we get a palindrome (845373686373548).

The spelling of 131131244242417 in words is "one hundred thirty-one trillion, one hundred thirty-one billion, two hundred forty-four million, two hundred forty-two thousand, four hundred seventeen".