111288 has 16 divisors (see below), whose sum is σ = 278280. Its totient is φ = 37088.

The previous prime is 111271. The next prime is 111301. The reversal of 111288 is 882111.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

111288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2295 + ... + 2342.

2¹¹¹²⁸⁸ is an apocalyptic number.

It is an amenable number.

111288 is an abundant number, since it is smaller than the sum of its proper divisors (166992).

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

111288 is a wasteful number, since it uses less digits than its factorization.

111288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646 (or 4642 counting only the distinct ones).

The product of its digits is 128, while the sum is 21.

The square root of 111288 is about 333.5985611480. The cubic root of 111288 is about 48.1004839430.

Adding to 111288 its reverse (882111), we get a palindrome (993399).

The spelling of 111288 in words is "one hundred eleven thousand, two hundred eighty-eight".