1123004503 has 2 divisors, whose sum is σ = 1123004504. Its totient is φ = 1123004502.

The previous prime is 1123004471. The next prime is 1123004539. The reversal of 1123004503 is 3054003211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123004503 - 2⁵ = 1123004471 is a prime.

It is a super-2 number, since 2×1123004503² = 2522278227516554018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123004573) 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 as a sum of consecutive naturals, namely, 561502251 + 561502252.

It is an arithmetic number, because the mean of its divisors is an integer number (561502252).

Almost surely, 2^1123004503 is an apocalyptic number.

1123004503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123004503 is an equidigital number, since it uses as much as digits as its factorization.

1123004503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1123004503 is about 33511.2593466733. The cubic root of 1123004503 is about 1039.4266140969.

Adding to 1123004503 its reverse (3054003211), we get a palindrome (4177007714).

The spelling of 1123004503 in words is "one billion, one hundred twenty-three million, four thousand, five hundred three".