111101111001197 has 2 divisors, whose sum is σ = 111101111001198. Its totient is φ = 111101111001196.

The previous prime is 111101111001151. The next prime is 111101111001247. The reversal of 111101111001197 is 791100111101111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86685149556196 + 24415961445001 = 9310486^2 + 4941251^2 .

It is a cyclic number.

It is not a de Polignac number, because 111101111001197 - 2³⁰ = 111100037259373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101111001107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550555500598 + 55550555500599.

It is an arithmetic number, because the mean of its divisors is an integer number (55550555500599).

Almost surely, 2^{111101111001197} is an apocalyptic number.

It is an amenable number.

111101111001197 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101111001197 is an equidigital number, since it uses as much as digits as its factorization.

111101111001197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 26.

The spelling of 111101111001197 in words is "one hundred eleven trillion, one hundred one billion, one hundred eleven million, one thousand, one hundred ninety-seven".