211132560507613 has 2 divisors, whose sum is σ = 211132560507614. Its totient is φ = 211132560507612.

The previous prime is 211132560507569. The next prime is 211132560507619. The reversal of 211132560507613 is 316705065231112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173964967818084 + 37167592689529 = 13189578^2 + 6096523^2 .

It is a cyclic number.

It is not a de Polignac number, because 211132560507613 - 2²⁵ = 211132526953181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211132560507613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211132560507619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105566280253806 + 105566280253807.

It is an arithmetic number, because the mean of its divisors is an integer number (105566280253807).

Almost surely, 2^{211132560507613} is an apocalyptic number.

It is an amenable number.

211132560507613 is a deficient number, since it is larger than the sum of its proper divisors (1).

211132560507613 is an equidigital number, since it uses as much as digits as its factorization.

211132560507613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 211132560507613 in words is "two hundred eleven trillion, one hundred thirty-two billion, five hundred sixty million, five hundred seven thousand, six hundred thirteen".