111030197 has 2 divisors, whose sum is σ = 111030198. Its totient is φ = 111030196.

The previous prime is 111030193. The next prime is 111030203. The reversal of 111030197 is 791030111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94497841 + 16532356 = 9721^2 + 4066^2 .

It is a cyclic number.

It is not a de Polignac number, because 111030197 - 2² = 111030193 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111030191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55515098 + 55515099.

It is an arithmetic number, because the mean of its divisors is an integer number (55515099).

Almost surely, 2^111030197 is an apocalyptic number.

It is an amenable number.

111030197 is a deficient number, since it is larger than the sum of its proper divisors (1).

111030197 is an equidigital number, since it uses as much as digits as its factorization.

111030197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 111030197 is about 10537.0867415999. The cubic root of 111030197 is about 480.6331300881.

The spelling of 111030197 in words is "one hundred eleven million, thirty thousand, one hundred ninety-seven".