1110111021091 has 2 divisors, whose sum is σ = 1110111021092. Its totient is φ = 1110111021090.

The previous prime is 1110111021037. The next prime is 1110111021113. The reversal of 1110111021091 is 1901201110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1110111021091 - 2¹⁷ = 1110110890019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1110111021031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055510545 + 555055510546.

It is an arithmetic number, because the mean of its divisors is an integer number (555055510546).

Almost surely, 2^{1110111021091} is an apocalyptic number.

1110111021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111021091 is an equidigital number, since it uses as much as digits as its factorization.

1110111021091 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 1110111021091 in words is "one trillion, one hundred ten billion, one hundred eleven million, twenty-one thousand, ninety-one".