131233123393213 has 2 divisors, whose sum is σ = 131233123393214. Its totient is φ = 131233123393212.

The previous prime is 131233123393159. The next prime is 131233123393289. The reversal of 131233123393213 is 312393321332131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129275035326724 + 1958088066489 = 11369918^2 + 1399317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131233123393213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131233123393013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616561696606 + 65616561696607.

It is an arithmetic number, because the mean of its divisors is an integer number (65616561696607).

Almost surely, 2^{131233123393213} is an apocalyptic number.

It is an amenable number.

131233123393213 is a deficient number, since it is larger than the sum of its proper divisors (1).

131233123393213 is an equidigital number, since it uses as much as digits as its factorization.

131233123393213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 40.

The spelling of 131233123393213 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, one hundred twenty-three million, three hundred ninety-three thousand, two hundred thirteen".