111000000193 has 2 divisors, whose sum is σ = 111000000194. Its totient is φ = 111000000192.

The previous prime is 111000000173. The next prime is 111000000211. The reversal of 111000000193 is 391000000111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56905148304 + 54094851889 = 238548^2 + 232583^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000000193 - 2⁵ = 111000000161 is a prime.

It is not a weakly prime, because it can be changed into another prime (111000000143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500000096 + 55500000097.

It is an arithmetic number, because the mean of its divisors is an integer number (55500000097).

Almost surely, 2^111000000193 is an apocalyptic number.

It is an amenable number.

111000000193 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000000193 is an equidigital number, since it uses as much as digits as its factorization.

111000000193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 16.

The spelling of 111000000193 in words is "one hundred eleven billion, one hundred ninety-three", and thus it is an aban number.