111108018 has 16 divisors (see below), whose sum is σ = 253961280. Its totient is φ = 31745136.

The previous prime is 111108017. The next prime is 111108031. The reversal of 111108018 is 810801111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111107985 and 111108003.

It is not an unprimeable number, because it can be changed into a prime (111108013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322673 + ... + 1322756.

It is an arithmetic number, because the mean of its divisors is an integer number (15872580).

Almost surely, 2^111108018 is an apocalyptic number.

111108018 is an abundant number, since it is smaller than the sum of its proper divisors (142853262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111108018 is a wasteful number, since it uses less digits than its factorization.

111108018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645441.

The product of its (nonzero) digits is 64, while the sum is 21.

The square root of 111108018 is about 10540.7788137310. The cubic root of 111108018 is about 480.7453956896.

Adding to 111108018 its reverse (810801111), we get a palindrome (921909129).

The spelling of 111108018 in words is "one hundred eleven million, one hundred eight thousand, eighteen".