11566343101 has 2 divisors, whose sum is σ = 11566343102. Its totient is φ = 11566343100.

The previous prime is 11566343077. The next prime is 11566343123. The reversal of 11566343101 is 10134366511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11554100100 + 12243001 = 107490^2 + 3499^2 .

It is a cyclic number.

It is not a de Polignac number, because 11566343101 - 2¹¹ = 11566341053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11566343401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5783171550 + 5783171551.

It is an arithmetic number, because the mean of its divisors is an integer number (5783171551).

Almost surely, 2^11566343101 is an apocalyptic number.

It is an amenable number.

11566343101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11566343101 is an equidigital number, since it uses as much as digits as its factorization.

11566343101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 11566343101 in words is "eleven billion, five hundred sixty-six million, three hundred forty-three thousand, one hundred one".