131881863241 has 2 divisors, whose sum is σ = 131881863242. Its totient is φ = 131881863240.

The previous prime is 131881863227. The next prime is 131881863263. The reversal of 131881863241 is 142368188131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96283607616 + 35598255625 = 310296^2 + 188675^2 .

It is a cyclic number.

It is not a de Polignac number, because 131881863241 - 2⁵ = 131881863209 is a prime.

It is a super-3 number, since 3×131881863241³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131881863191 and 131881863200.

It is not a weakly prime, because it can be changed into another prime (131881863221) 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, 65940931620 + 65940931621.

It is an arithmetic number, because the mean of its divisors is an integer number (65940931621).

Almost surely, 2^131881863241 is an apocalyptic number.

It is an amenable number.

131881863241 is a deficient number, since it is larger than the sum of its proper divisors (1).

131881863241 is an equidigital number, since it uses as much as digits as its factorization.

131881863241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 46.

The spelling of 131881863241 in words is "one hundred thirty-one billion, eight hundred eighty-one million, eight hundred sixty-three thousand, two hundred forty-one".