1100111201191 has 2 divisors, whose sum is σ = 1100111201192. Its totient is φ = 1100111201190.

The previous prime is 1100111201173. The next prime is 1100111201213. The reversal of 1100111201191 is 1911021110011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100111201191 - 2⁵ = 1100111201159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100111201171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550055600595 + 550055600596.

It is an arithmetic number, because the mean of its divisors is an integer number (550055600596).

Almost surely, 2^{1100111201191} is an apocalyptic number.

1100111201191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100111201191 is an equidigital number, since it uses as much as digits as its factorization.

1100111201191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 1100111201191 in words is "one trillion, one hundred billion, one hundred eleven million, two hundred one thousand, one hundred ninety-one".