111100111103 has 2 divisors, whose sum is σ = 111100111104. Its totient is φ = 111100111102.

The previous prime is 111100111079. The next prime is 111100111123. The reversal of 111100111103 is 301111001111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100111103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111100111123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550055551 + 55550055552.

It is an arithmetic number, because the mean of its divisors is an integer number (55550055552).

Almost surely, 2^111100111103 is an apocalyptic number.

111100111103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100111103 is an equidigital number, since it uses as much as digits as its factorization.

111100111103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3, while the sum is 11.

Adding to 111100111103 its reverse (301111001111), we get a palindrome (412211112214).

The spelling of 111100111103 in words is "one hundred eleven billion, one hundred million, one hundred eleven thousand, one hundred three".