1110111111943 has 2 divisors, whose sum is σ = 1110111111944. Its totient is φ = 1110111111942.

The previous prime is 1110111111919. The next prime is 1110111111947. The reversal of 1110111111943 is 3491111110111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110111111943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110111111947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055555971 + 555055555972.

It is an arithmetic number, because the mean of its divisors is an integer number (555055555972).

Almost surely, 2^{1110111111943} is an apocalyptic number.

1110111111943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111111943 is an equidigital number, since it uses as much as digits as its factorization.

1110111111943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 25.

The spelling of 1110111111943 in words is "one trillion, one hundred ten billion, one hundred eleven million, one hundred eleven thousand, nine hundred forty-three".