1112240543 has 4 divisors (see below), whose sum is σ = 1114751688. Its totient is φ = 1109729400.

The previous prime is 1112240539. The next prime is 1112240557. The reversal of 1112240543 is 3450422111.

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 1112240543 - 2² = 1112240539 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 (1112246543) 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, 1254908 + ... + 1255793.

It is an arithmetic number, because the mean of its divisors is an integer number (278687922).

Almost surely, 2^1112240543 is an apocalyptic number.

1112240543 is a deficient number, since it is larger than the sum of its proper divisors (2511145).

1112240543 is an equidigital number, since it uses as much as digits as its factorization.

1112240543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511144.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1112240543 is about 33350.2705086481. The cubic root of 1112240543 is about 1036.0949905571.

Adding to 1112240543 its reverse (3450422111), we get a palindrome (4562662654).

The spelling of 1112240543 in words is "one billion, one hundred twelve million, two hundred forty thousand, five hundred forty-three".