131320351241 has 2 divisors, whose sum is σ = 131320351242. Its totient is φ = 131320351240.

The previous prime is 131320351229. The next prime is 131320351289. The reversal of 131320351241 is 142153023131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103022382841 + 28297968400 = 320971^2 + 168220^2 .

It is a cyclic number.

It is not a de Polignac number, because 131320351241 - 2¹⁴ = 131320334857 is a prime.

It is a super-2 number, since 2×131320351241² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131320351241.

It is not a weakly prime, because it can be changed into another prime (131320350241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65660175620 + 65660175621.

It is an arithmetic number, because the mean of its divisors is an integer number (65660175621).

Almost surely, 2^131320351241 is an apocalyptic number.

It is an amenable number.

131320351241 is a deficient number, since it is larger than the sum of its proper divisors (1).

131320351241 is an equidigital number, since it uses as much as digits as its factorization.

131320351241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 131320351241 its reverse (142153023131), we get a palindrome (273473374372).

The spelling of 131320351241 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred fifty-one thousand, two hundred forty-one".