111124 has 12 divisors (see below), whose sum is σ = 209524. Its totient is φ = 51264.

The previous prime is 111121. The next prime is 111127. The reversal of 111124 is 421111.

It is an interprime number because it is at equal distance from previous prime (111121) and next prime (111127).

It can be written as a sum of positive squares in 2 ways, for example, as 10000 + 101124 = 100^2 + 318^2 .

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 nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 111124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017 + ... + 1120.

2¹¹¹¹²⁴ is an apocalyptic number.

It is an amenable number.

111124 is a deficient number, since it is larger than the sum of its proper divisors (98400).

111124 is a wasteful number, since it uses less digits than its factorization.

111124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154 (or 2152 counting only the distinct ones).

The product of its digits is 8, while the sum is 10.

The square root of 111124 is about 333.3526661060. The cubic root of 111124 is about 48.0768445045.

Adding to 111124 its reverse (421111), we get a palindrome (532235).

The spelling of 111124 in words is "one hundred eleven thousand, one hundred twenty-four", and thus it is an iban number.