111123163 has 4 divisors (see below), whose sum is σ = 111258360. Its totient is φ = 110987968.

The previous prime is 111123149. The next prime is 111123167. The reversal of 111123163 is 361321111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361321111 = 17 ⋅21254183.

It is a cyclic number.

It is not a de Polignac number, because 111123163 - 2⁹ = 111122651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111123163.

It is not an unprimeable number, because it can be changed into a prime (111123167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66358 + ... + 68011.

It is an arithmetic number, because the mean of its divisors is an integer number (27814590).

Almost surely, 2^111123163 is an apocalyptic number.

111123163 is a deficient number, since it is larger than the sum of its proper divisors (135197).

111123163 is an equidigital number, since it uses as much as digits as its factorization.

111123163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135196.

The product of its digits is 108, while the sum is 19.

The square root of 111123163 is about 10541.4971896785. The cubic root of 111123163 is about 480.7672379723.

Adding to 111123163 its reverse (361321111), we get a palindrome (472444274).

The spelling of 111123163 in words is "one hundred eleven million, one hundred twenty-three thousand, one hundred sixty-three".