111133242 has 128 divisors (see below), whose sum is σ = 291456000. Its totient is φ = 31026240.

The previous prime is 111133219. The next prime is 111133259. The reversal of 111133242 is 242331111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 485184 + ... + 485412.

It is an arithmetic number, because the mean of its divisors is an integer number (2277000).

Almost surely, 2^111133242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111133242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145728000).

111133242 is an abundant number, since it is smaller than the sum of its proper divisors (180322758).

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

111133242 is a wasteful number, since it uses less digits than its factorization.

111133242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 307 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 111133242 is about 10541.9752418605. The cubic root of 111133242 is about 480.7817729152.

Adding to 111133242 its reverse (242331111), we get a palindrome (353464353).

The spelling of 111133242 in words is "one hundred eleven million, one hundred thirty-three thousand, two hundred forty-two".