131232140421281 has 2 divisors, whose sum is σ = 131232140421282. Its totient is φ = 131232140421280.

The previous prime is 131232140421271. The next prime is 131232140421377. The reversal of 131232140421281 is 182124041232131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78966238827025 + 52265901594256 = 8886295^2 + 7229516^2 .

It is a cyclic number.

It is not a de Polignac number, because 131232140421281 - 2⁴² = 126834093910177 is a prime.

It is a super-2 number, since 2×131232140421281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131232140421271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616070210640 + 65616070210641.

It is an arithmetic number, because the mean of its divisors is an integer number (65616070210641).

Almost surely, 2^{131232140421281} is an apocalyptic number.

It is an amenable number.

131232140421281 is a deficient number, since it is larger than the sum of its proper divisors (1).

131232140421281 is an equidigital number, since it uses as much as digits as its factorization.

131232140421281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 131232140421281 in words is "one hundred thirty-one trillion, two hundred thirty-two billion, one hundred forty million, four hundred twenty-one thousand, two hundred eighty-one".