1112240243 has 4 divisors (see below), whose sum is σ = 1113923568. Its totient is φ = 1110556920.

The previous prime is 1112240203. The next prime is 1112240257. The reversal of 1112240243 is 3420422111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1112240243 - 2¹⁸ = 1111978099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112240203) 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, 840671 + ... + 841992.

It is an arithmetic number, because the mean of its divisors is an integer number (278480892).

Almost surely, 2^1112240243 is an apocalyptic number.

1112240243 is a deficient number, since it is larger than the sum of its proper divisors (1683325).

1112240243 is an equidigital number, since it uses as much as digits as its factorization.

1112240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683324.

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

The square root of 1112240243 is about 33350.2660109331. The cubic root of 1112240243 is about 1036.0948974033.

Adding to 1112240243 its reverse (3420422111), we get a palindrome (4532662354).

The spelling of 1112240243 in words is "one billion, one hundred twelve million, two hundred forty thousand, two hundred forty-three".