111123444 has 12 divisors (see below), whose sum is σ = 259288064. Its totient is φ = 37041144.

The previous prime is 111123443. The next prime is 111123479. The reversal of 111123444 is 444321111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×111123444² = 24696839612842272, which contains 22 as substring.

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 self number, because there is not a number n which added to its sum of digits gives 111123444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111123443) 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, 4630132 + ... + 4630155.

Almost surely, 2^111123444 is an apocalyptic number.

It is an amenable number.

111123444 is an abundant number, since it is smaller than the sum of its proper divisors (148164620).

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

111123444 is a wasteful number, since it uses less digits than its factorization.

111123444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9260294 (or 9260292 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 111123444 is about 10541.5105179476. The cubic root of 111123444 is about 480.7676432148.

Adding to 111123444 its reverse (444321111), we get a palindrome (555444555).

The spelling of 111123444 in words is "one hundred eleven million, one hundred twenty-three thousand, four hundred forty-four".