111321442 has 8 divisors (see below), whose sum is σ = 168257232. Its totient is φ = 55235700.

The previous prime is 111321439. The next prime is 111321451. The reversal of 111321442 is 244123111.

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

It is an unprimeable number.

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, 212184 + ... + 212707.

It is an arithmetic number, because the mean of its divisors is an integer number (21032154).

Almost surely, 2^111321442 is an apocalyptic number.

111321442 is a deficient number, since it is larger than the sum of its proper divisors (56935790).

111321442 is a wasteful number, since it uses less digits than its factorization.

111321442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425024.

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

The square root of 111321442 is about 10550.8976869269. The cubic root of 111321442 is about 481.0530151929.

Adding to 111321442 its reverse (244123111), we get a palindrome (355444553).

The spelling of 111321442 in words is "one hundred eleven million, three hundred twenty-one thousand, four hundred forty-two".