1110111110491 has 2 divisors, whose sum is σ = 1110111110492. Its totient is φ = 1110111110490.

The previous prime is 1110111110483. The next prime is 1110111110497. The reversal of 1110111110491 is 1940111110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1110111110491 - 2³ = 1110111110483 is a prime.

It is a super-2 number, since 2×1110111110491² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1110111110497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055555245 + 555055555246.

It is an arithmetic number, because the mean of its divisors is an integer number (555055555246).

Almost surely, 2^{1110111110491} is an apocalyptic number.

1110111110491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111110491 is an equidigital number, since it uses as much as digits as its factorization.

1110111110491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 22.

The spelling of 1110111110491 in words is "one trillion, one hundred ten billion, one hundred eleven million, one hundred ten thousand, four hundred ninety-one".