131031000613 has 2 divisors, whose sum is σ = 131031000614. Its totient is φ = 131031000612.

The previous prime is 131031000593. The next prime is 131031000629. The reversal of 131031000613 is 316000130131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109705363524 + 21325637089 = 331218^2 + 146033^2 .

It is a cyclic number.

It is not a de Polignac number, because 131031000613 - 2²¹ = 131028903461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131031000673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65515500306 + 65515500307.

It is an arithmetic number, because the mean of its divisors is an integer number (65515500307).

Almost surely, 2^131031000613 is an apocalyptic number.

It is an amenable number.

131031000613 is a deficient number, since it is larger than the sum of its proper divisors (1).

131031000613 is an equidigital number, since it uses as much as digits as its factorization.

131031000613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131031000613 its reverse (316000130131), we get a palindrome (447031130744).

The spelling of 131031000613 in words is "one hundred thirty-one billion, thirty-one million, six hundred thirteen", and thus it is an aban number.