111110099897 has 2 divisors, whose sum is σ = 111110099898. Its totient is φ = 111110099896.

The previous prime is 111110099857. The next prime is 111110099909. The reversal of 111110099897 is 798990011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56176584256 + 54933515641 = 237016^2 + 234379^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110099897 - 2²⁸ = 110841664441 is a prime.

It is not a weakly prime, because it can be changed into another prime (111110099857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555049948 + 55555049949.

It is an arithmetic number, because the mean of its divisors is an integer number (55555049949).

Almost surely, 2^111110099897 is an apocalyptic number.

It is an amenable number.

111110099897 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110099897 is an equidigital number, since it uses as much as digits as its factorization.

111110099897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 47.

The spelling of 111110099897 in words is "one hundred eleven billion, one hundred ten million, ninety-nine thousand, eight hundred ninety-seven".