131302273013 has 2 divisors, whose sum is σ = 131302273014. Its totient is φ = 131302273012.

The previous prime is 131302273009. The next prime is 131302273021. The reversal of 131302273013 is 310372203131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96362438929 + 34939834084 = 310423^2 + 186922^2 .

It is a cyclic number.

It is not a de Polignac number, because 131302273013 - 2² = 131302273009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131302273033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651136506 + 65651136507.

It is an arithmetic number, because the mean of its divisors is an integer number (65651136507).

Almost surely, 2^131302273013 is an apocalyptic number.

It is an amenable number.

131302273013 is a deficient number, since it is larger than the sum of its proper divisors (1).

131302273013 is an equidigital number, since it uses as much as digits as its factorization.

131302273013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

Adding to 131302273013 its reverse (310372203131), we get a palindrome (441674476144).

The spelling of 131302273013 in words is "one hundred thirty-one billion, three hundred two million, two hundred seventy-three thousand, thirteen".