1113244543 has 4 divisors (see below), whose sum is σ = 1113432768. Its totient is φ = 1113056320.

The previous prime is 1113244519. The next prime is 1113244591. The reversal of 1113244543 is 3454423111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3454423111 = 11497 ⋅300463.

It is a cyclic number.

It is not a de Polignac number, because 1113244543 - 2⁵ = 1113244511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113244513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84943 + ... + 97168.

It is an arithmetic number, because the mean of its divisors is an integer number (278358192).

Almost surely, 2^1113244543 is an apocalyptic number.

1113244543 is a deficient number, since it is larger than the sum of its proper divisors (188225).

1113244543 is an equidigital number, since it uses as much as digits as its factorization.

1113244543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188224.

The product of its digits is 5760, while the sum is 28.

The square root of 1113244543 is about 33365.3194649774. The cubic root of 1113244543 is about 1036.4066517147.

Adding to 1113244543 its reverse (3454423111), we get a palindrome (4567667654).

The spelling of 1113244543 in words is "one billion, one hundred thirteen million, two hundred forty-four thousand, five hundred forty-three".