1112021243 has 8 divisors (see below), whose sum is σ = 1149106176. Its totient is φ = 1075012200.

The previous prime is 1112021231. The next prime is 1112021297. The reversal of 1112021243 is 3421202111.

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 1112021243 - 2⁶ = 1112021179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11630 + ... + 48572.

It is an arithmetic number, because the mean of its divisors is an integer number (143638272).

Almost surely, 2^1112021243 is an apocalyptic number.

1112021243 is a deficient number, since it is larger than the sum of its proper divisors (37084933).

1112021243 is an equidigital number, since it uses as much as digits as its factorization.

1112021243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37945.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1112021243 is about 33346.9825171634. The cubic root of 1112021243 is about 1036.0268906100.

Adding to 1112021243 its reverse (3421202111), we get a palindrome (4533223354).

The spelling of 1112021243 in words is "one billion, one hundred twelve million, twenty-one thousand, two hundred forty-three".