131073954881 has 2 divisors, whose sum is σ = 131073954882. Its totient is φ = 131073954880.

The previous prime is 131073954859. The next prime is 131073954929. The reversal of 131073954881 is 188459370131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77738361856 + 53335593025 = 278816^2 + 230945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131073954881 is a prime.

It is a super-2 number, since 2×131073954881² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131073954181) 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, 65536977440 + 65536977441.

It is an arithmetic number, because the mean of its divisors is an integer number (65536977441).

Almost surely, 2^131073954881 is an apocalyptic number.

It is an amenable number.

131073954881 is a deficient number, since it is larger than the sum of its proper divisors (1).

131073954881 is an equidigital number, since it uses as much as digits as its factorization.

131073954881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 131073954881 in words is "one hundred thirty-one billion, seventy-three million, nine hundred fifty-four thousand, eight hundred eighty-one".