111840775097 has 2 divisors, whose sum is σ = 111840775098. Its totient is φ = 111840775096.

The previous prime is 111840775049. The next prime is 111840775133. The reversal of 111840775097 is 790577048111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92912793856 + 18927981241 = 304816^2 + 137579^2 .

It is an emirp because it is prime and its reverse (790577048111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111840775097 - 2⁸ = 111840774841 is a prime.

It is not a weakly prime, because it can be changed into another prime (111840775297) 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, 55920387548 + 55920387549.

It is an arithmetic number, because the mean of its divisors is an integer number (55920387549).

Almost surely, 2^111840775097 is an apocalyptic number.

It is an amenable number.

111840775097 is a deficient number, since it is larger than the sum of its proper divisors (1).

111840775097 is an equidigital number, since it uses as much as digits as its factorization.

111840775097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 50.

The spelling of 111840775097 in words is "one hundred eleven billion, eight hundred forty million, seven hundred seventy-five thousand, ninety-seven".