131443040513 has 2 divisors, whose sum is σ = 131443040514. Its totient is φ = 131443040512.

The previous prime is 131443040489. The next prime is 131443040567. The reversal of 131443040513 is 315040344131.

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., 66971228944 + 64471811569 = 258788^2 + 253913^2 .

It is an emirp because it is prime and its reverse (315040344131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131443040513 - 2²⁰ = 131441991937 is a prime.

It is not a weakly prime, because it can be changed into another prime (131443040213) 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, 65721520256 + 65721520257.

It is an arithmetic number, because the mean of its divisors is an integer number (65721520257).

Almost surely, 2^131443040513 is an apocalyptic number.

It is an amenable number.

131443040513 is a deficient number, since it is larger than the sum of its proper divisors (1).

131443040513 is an equidigital number, since it uses as much as digits as its factorization.

131443040513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 131443040513 its reverse (315040344131), we get a palindrome (446483384644).

The spelling of 131443040513 in words is "one hundred thirty-one billion, four hundred forty-three million, forty thousand, five hundred thirteen".