2111266550317 has 2 divisors, whose sum is σ = 2111266550318. Its totient is φ = 2111266550316.

The previous prime is 2111266550243. The next prime is 2111266550359. The reversal of 2111266550317 is 7130556621112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1526754313161 + 584512237156 = 1235619^2 + 764534^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111266550317 - 2⁷ = 2111266550189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111266550317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111266550117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055633275158 + 1055633275159.

It is an arithmetic number, because the mean of its divisors is an integer number (1055633275159).

Almost surely, 2^{2111266550317} is an apocalyptic number.

It is an amenable number.

2111266550317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111266550317 is an equidigital number, since it uses as much as digits as its factorization.

2111266550317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 2111266550317 in words is "two trillion, one hundred eleven billion, two hundred sixty-six million, five hundred fifty thousand, three hundred seventeen".