111118863 has 4 divisors (see below), whose sum is σ = 148158488. Its totient is φ = 74079240.

The previous prime is 111118853. The next prime is 111118867. The reversal of 111118863 is 368811111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 111118863 - 2⁵ = 111118831 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 111118863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111118867) 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, 18519808 + ... + 18519813.

It is an arithmetic number, because the mean of its divisors is an integer number (37039622).

Almost surely, 2^111118863 is an apocalyptic number.

111118863 is a deficient number, since it is larger than the sum of its proper divisors (37039625).

111118863 is an equidigital number, since it uses as much as digits as its factorization.

111118863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37039624.

The product of its digits is 1152, while the sum is 30.

The square root of 111118863 is about 10541.2932318573. The cubic root of 111118863 is about 480.7610366676.

Adding to 111118863 its reverse (368811111), we get a palindrome (479929974).

The spelling of 111118863 in words is "one hundred eleven million, one hundred eighteen thousand, eight hundred sixty-three".