1123504043 has 8 divisors (see below), whose sum is σ = 1152904368. Its totient is φ = 1094252544.

The previous prime is 1123504037. The next prime is 1123504079. The reversal of 1123504043 is 3404053211.

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 1123504043 - 2²⁴ = 1106726827 is a prime.

It is a super-2 number, since 2×1123504043² = 2524522669274691698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123504003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21830 + ... + 52187.

It is an arithmetic number, because the mean of its divisors is an integer number (144113046).

Almost surely, 2^1123504043 is an apocalyptic number.

1123504043 is a deficient number, since it is larger than the sum of its proper divisors (29400325).

1123504043 is an equidigital number, since it uses as much as digits as its factorization.

1123504043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74413.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1123504043 is about 33518.7118338399. The cubic root of 1123504043 is about 1039.5807120841.

Adding to 1123504043 its reverse (3404053211), we get a palindrome (4527557254).

The spelling of 1123504043 in words is "one billion, one hundred twenty-three million, five hundred four thousand, forty-three".