1110111100999 has 2 divisors, whose sum is σ = 1110111101000. Its totient is φ = 1110111100998.

The previous prime is 1110111100997. The next prime is 1110111101009. The reversal of 1110111100999 is 9990011110111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1110111100999 - 2¹ = 1110111100997 is a prime.

It is a super-2 number, since 2×1110111100999² (a number of 25 digits) contains 22 as substring.

Together with 1110111100997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110111100991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055550499 + 555055550500.

It is an arithmetic number, because the mean of its divisors is an integer number (555055550500).

Almost surely, 2^{1110111100999} is an apocalyptic number.

1110111100999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111100999 is an equidigital number, since it uses as much as digits as its factorization.

1110111100999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 34.

The spelling of 1110111100999 in words is "one trillion, one hundred ten billion, one hundred eleven million, one hundred thousand, nine hundred ninety-nine".