1100117191 has 2 divisors, whose sum is σ = 1100117192. Its totient is φ = 1100117190.

The previous prime is 1100117159. The next prime is 1100117231. The reversal of 1100117191 is 1917110011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100117191 - 2⁵ = 1100117159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100117111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550058595 + 550058596.

It is an arithmetic number, because the mean of its divisors is an integer number (550058596).

Almost surely, 2^1100117191 is an apocalyptic number.

1100117191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100117191 is an equidigital number, since it uses as much as digits as its factorization.

1100117191 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 22.

The square root of 1100117191 is about 33168.0145773002. The cubic root of 1100117191 is about 1032.3167729240.

The spelling of 1100117191 in words is "one billion, one hundred million, one hundred seventeen thousand, one hundred ninety-one".