111430242 has 80 divisors (see below), whose sum is σ = 311332032. Its totient is φ = 28939680.

The previous prime is 111430237. The next prime is 111430261. The reversal of 111430242 is 242034111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8008 + ... + 16940.

Almost surely, 2^111430242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111430242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155666016).

111430242 is an abundant number, since it is smaller than the sum of its proper divisors (199901790).

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

111430242 is a wasteful number, since it uses less digits than its factorization.

111430242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8965 (or 8956 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 111430242 is about 10556.0523871379. The cubic root of 111430242 is about 481.2096832026.

Adding to 111430242 its reverse (242034111), we get a palindrome (353464353).

The spelling of 111430242 in words is "one hundred eleven million, four hundred thirty thousand, two hundred forty-two".