111144812 has 24 divisors (see below), whose sum is σ = 197589504. Its totient is φ = 54698112.

The previous prime is 111144797. The next prime is 111144821. The reversal of 111144812 is 218441111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68798 + ... + 70394.

It is an arithmetic number, because the mean of its divisors is an integer number (8232896).

Almost surely, 2^111144812 is an apocalyptic number.

It is an amenable number.

111144812 is a deficient number, since it is larger than the sum of its proper divisors (86444692).

111144812 is a wasteful number, since it uses less digits than its factorization.

111144812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865 (or 1863 counting only the distinct ones).

The product of its digits is 256, while the sum is 23.

The square root of 111144812 is about 10542.5239862189. The cubic root of 111144812 is about 480.7984569484.

Adding to 111144812 its reverse (218441111), we get a palindrome (329585923).

The spelling of 111144812 in words is "one hundred eleven million, one hundred forty-four thousand, eight hundred twelve".