1112042843 has 4 divisors (see below), whose sum is σ = 1112224080. Its totient is φ = 1111861608.

The previous prime is 1112042821. The next prime is 1112042857. The reversal of 1112042843 is 3482402111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3482402111 = 17 ⋅204847183.

It is a cyclic number.

It is not a de Polignac number, because 1112042843 - 2⁸ = 1112042587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112042863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81080 + ... + 93797.

It is an arithmetic number, because the mean of its divisors is an integer number (278056020).

Almost surely, 2^1112042843 is an apocalyptic number.

1112042843 is a deficient number, since it is larger than the sum of its proper divisors (181237).

1112042843 is an equidigital number, since it uses as much as digits as its factorization.

1112042843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181236.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1112042843 is about 33347.3063829749. The cubic root of 1112042843 is about 1036.0335985262.

Adding to 1112042843 its reverse (3482402111), we get a palindrome (4594444954).

The spelling of 1112042843 in words is "one billion, one hundred twelve million, forty-two thousand, eight hundred forty-three".