131323020223013 has 2 divisors, whose sum is σ = 131323020223014. Its totient is φ = 131323020223012.

The previous prime is 131323020223009. The next prime is 131323020223067. The reversal of 131323020223013 is 310322020323131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121894693791649 + 9428326431364 = 11040593^2 + 3070558^2 .

It is a cyclic number.

It is not a de Polignac number, because 131323020223013 - 2² = 131323020223009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131323020223093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65661510111506 + 65661510111507.

It is an arithmetic number, because the mean of its divisors is an integer number (65661510111507).

Almost surely, 2^{131323020223013} is an apocalyptic number.

It is an amenable number.

131323020223013 is a deficient number, since it is larger than the sum of its proper divisors (1).

131323020223013 is an equidigital number, since it uses as much as digits as its factorization.

131323020223013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 131323020223013 its reverse (310322020323131), we get a palindrome (441645040546144).

The spelling of 131323020223013 in words is "one hundred thirty-one trillion, three hundred twenty-three billion, twenty million, two hundred twenty-three thousand, thirteen".