131303122020613 has 2 divisors, whose sum is σ = 131303122020614. Its totient is φ = 131303122020612.

The previous prime is 131303122020563. The next prime is 131303122020643. The reversal of 131303122020613 is 316020221303131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102458467219329 + 28844654801284 = 10122177^2 + 5370722^2 .

It is an emirp because it is prime and its reverse (316020221303131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131303122020613 - 2⁹ = 131303122020101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131303122020643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651561010306 + 65651561010307.

It is an arithmetic number, because the mean of its divisors is an integer number (65651561010307).

Almost surely, 2^{131303122020613} is an apocalyptic number.

It is an amenable number.

131303122020613 is a deficient number, since it is larger than the sum of its proper divisors (1).

131303122020613 is an equidigital number, since it uses as much as digits as its factorization.

131303122020613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 131303122020613 its reverse (316020221303131), we get a palindrome (447323343323744).

The spelling of 131303122020613 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred twenty-two million, twenty thousand, six hundred thirteen".