111442133 has 8 divisors (see below), whose sum is σ = 121650816. Its totient is φ = 101246400.

The previous prime is 111442109. The next prime is 111442147. The reversal of 111442133 is 331244111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111442133 - 2¹² = 111438037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111442103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27485 + ... + 31277.

It is an arithmetic number, because the mean of its divisors is an integer number (15206352).

Almost surely, 2^111442133 is an apocalyptic number.

It is an amenable number.

111442133 is a deficient number, since it is larger than the sum of its proper divisors (10208683).

111442133 is a wasteful number, since it uses less digits than its factorization.

111442133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6475.

The product of its digits is 288, while the sum is 20.

The square root of 111442133 is about 10556.6156034972. The cubic root of 111442133 is about 481.2267996237.

Adding to 111442133 its reverse (331244111), we get a palindrome (442686244).

It can be divided in two parts, 111 and 442133, that added together give a palindrome (442244).

The spelling of 111442133 in words is "one hundred eleven million, four hundred forty-two thousand, one hundred thirty-three".