131233143044281 has 2 divisors, whose sum is σ = 131233143044282. Its totient is φ = 131233143044280.

The previous prime is 131233143044261. The next prime is 131233143044321. The reversal of 131233143044281 is 182440341332131.

It is an a-pointer prime, because the next prime (131233143044321) can be obtained adding 131233143044281 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115839133853881 + 15394009190400 = 10762859^2 + 3923520^2 .

It is a cyclic number.

It is not a de Polignac number, because 131233143044281 - 2¹⁹ = 131233142519993 is a prime.

It is a super-2 number, since 2×131233143044281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131233143044251) 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, 65616571522140 + 65616571522141.

It is an arithmetic number, because the mean of its divisors is an integer number (65616571522141).

Almost surely, 2^{131233143044281} is an apocalyptic number.

It is an amenable number.

131233143044281 is a deficient number, since it is larger than the sum of its proper divisors (1).

131233143044281 is an equidigital number, since it uses as much as digits as its factorization.

131233143044281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 131233143044281 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, one hundred forty-three million, forty-four thousand, two hundred eighty-one".