111142234 has 16 divisors (see below), whose sum is σ = 191987136. Its totient is φ = 47268000.

The previous prime is 111142217. The next prime is 111142237. The reversal of 111142234 is 432241111.

It is not an unprimeable number, because it can be changed into a prime (111142237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28467 + ... + 32134.

It is an arithmetic number, because the mean of its divisors is an integer number (11999196).

Almost surely, 2^111142234 is an apocalyptic number.

111142234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

111142234 is a deficient number, since it is larger than the sum of its proper divisors (80844902).

111142234 is a wasteful number, since it uses less digits than its factorization.

111142234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60741.

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

The square root of 111142234 is about 10542.4017187736. The cubic root of 111142234 is about 480.7947395519.

Adding to 111142234 its reverse (432241111), we get a palindrome (543383345).

The spelling of 111142234 in words is "one hundred eleven million, one hundred forty-two thousand, two hundred thirty-four".