1123440003 has 24 divisors (see below), whose sum is σ = 1936089360. Its totient is φ = 641964960.

The previous prime is 1123439981. The next prime is 1123440007. The reversal of 1123440003 is 3000443211.

It is not a de Polignac number, because 1123440003 - 2⁵ = 1123439971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123440007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423258 + ... + 425903.

It is an arithmetic number, because the mean of its divisors is an integer number (80670390).

Almost surely, 2^1123440003 is an apocalyptic number.

1123440003 is a deficient number, since it is larger than the sum of its proper divisors (812649357).

1123440003 is an equidigital number, since it uses as much as digits as its factorization.

1123440003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849184 (or 849171 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1123440003 is about 33517.7565329185. The cubic root of 1123440003 is about 1039.5609595921.

Adding to 1123440003 its reverse (3000443211), we get a palindrome (4123883214).

The spelling of 1123440003 in words is "one billion, one hundred twenty-three million, four hundred forty thousand, three".