111423124 has 12 divisors (see below), whose sum is σ = 197001364. Its totient is φ = 55137024.

The previous prime is 111423113. The next prime is 111423127. The reversal of 111423124 is 421324111.

It can be written as a sum of positive squares in 2 ways, for example, as 30603024 + 80820100 = 5532^2 + 8990^2 .

It is a super-2 number, since 2×111423124² = 24830225123838752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111423127) 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, 143199 + ... + 143974.

Almost surely, 2^111423124 is an apocalyptic number.

It is an amenable number.

111423124 is a deficient number, since it is larger than the sum of its proper divisors (85578240).

111423124 is a wasteful number, since it uses less digits than its factorization.

111423124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287274 (or 287272 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 111423124 is about 10555.7152292017. The cubic root of 111423124 is about 481.1994366621.

Adding to 111423124 its reverse (421324111), we get a palindrome (532747235).

The spelling of 111423124 in words is "one hundred eleven million, four hundred twenty-three thousand, one hundred twenty-four".