111112668 has 48 divisors (see below), whose sum is σ = 289948960. Its totient is φ = 36796032.

The previous prime is 111112667. The next prime is 111112669. The reversal of 111112668 is 866211111.

It is an interprime number because it is at equal distance from previous prime (111112667) and next prime (111112669).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13680 + ... + 20232.

Almost surely, 2^111112668 is an apocalyptic number.

111112668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144974480).

111112668 is an abundant number, since it is smaller than the sum of its proper divisors (178836292).

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

111112668 is a wasteful number, since it uses less digits than its factorization.

111112668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723 (or 6715 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 111112668 is about 10540.9993833602. Note that the first 3 decimals coincide. The cubic root of 111112668 is about 480.7521021810.

Adding to 111112668 its reverse (866211111), we get a palindrome (977323779).

The spelling of 111112668 in words is "one hundred eleven million, one hundred twelve thousand, six hundred sixty-eight".