111110211097 has 2 divisors, whose sum is σ = 111110211098. Its totient is φ = 111110211096.

The previous prime is 111110211041. The next prime is 111110211127. The reversal of 111110211097 is 790112011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103285747161 + 7824463936 = 321381^2 + 88456^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110211097 - 2⁷ = 111110210969 is a prime.

It is not a weakly prime, because it can be changed into another prime (111110211007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555105548 + 55555105549.

It is an arithmetic number, because the mean of its divisors is an integer number (55555105549).

Almost surely, 2^111110211097 is an apocalyptic number.

It is an amenable number.

111110211097 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110211097 is an equidigital number, since it uses as much as digits as its factorization.

111110211097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 25.

The spelling of 111110211097 in words is "one hundred eleven billion, one hundred ten million, two hundred eleven thousand, ninety-seven".