11111200117 has 2 divisors, whose sum is σ = 11111200118. Its totient is φ = 11111200116.

The previous prime is 11111200097. The next prime is 11111200147. The reversal of 11111200117 is 71100211111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7044077041 + 4067123076 = 83929^2 + 63774^2 .

It is an emirp because it is prime and its reverse (71100211111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11111200117 - 2⁷ = 11111199989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111200117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111200147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555600058 + 5555600059.

It is an arithmetic number, because the mean of its divisors is an integer number (5555600059).

Almost surely, 2^11111200117 is an apocalyptic number.

It is an amenable number.

11111200117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111200117 is an equidigital number, since it uses as much as digits as its factorization.

11111200117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 16.

Adding to 11111200117 its reverse (71100211111), we get a palindrome (82211411228).

The spelling of 11111200117 in words is "eleven billion, one hundred eleven million, two hundred thousand, one hundred seventeen".