111432242 has 8 divisors (see below), whose sum is σ = 168871836. Its totient is φ = 55141632.

The previous prime is 111432199. The next prime is 111432247. The reversal of 111432242 is 242234111.

It can be written as a sum of positive squares in 2 ways, for example, as 107143201 + 4289041 = 10351^2 + 2071^2 .

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

It is not an unprimeable number, because it can be changed into a prime (111432247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 287003 + ... + 287390.

Almost surely, 2^111432242 is an apocalyptic number.

111432242 is a deficient number, since it is larger than the sum of its proper divisors (57439594).

111432242 is an equidigital number, since it uses as much as digits as its factorization.

111432242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574492.

The product of its digits is 384, while the sum is 20.

The square root of 111432242 is about 10556.1471190961. The cubic root of 111432242 is about 481.2125621745.

Adding to 111432242 its reverse (242234111), we get a palindrome (353666353).

The spelling of 111432242 in words is "one hundred eleven million, four hundred thirty-two thousand, two hundred forty-two".