1123003 has 8 divisors (see below), whose sum is σ = 1359072. Its totient is φ = 905856.

The previous prime is 1122997. The next prime is 1123051. The reversal of 1123003 is 3003211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123003 - 2⁹ = 1122491 is a prime.

It is a super-2 number, since 2×1123003² = 2522271476018, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4600 + ... + 4837.

It is an arithmetic number, because the mean of its divisors is an integer number (169884).

2^1123003 is an apocalyptic number.

1123003 is a deficient number, since it is larger than the sum of its proper divisors (236069).

1123003 is an equidigital number, since it uses as much as digits as its factorization.

1123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1123003 is about 1059.7183588105. The cubic root of 1123003 is about 103.9426150383.

Adding to 1123003 its reverse (3003211), we get a palindrome (4126214).

The spelling of 1123003 in words is "one million, one hundred twenty-three thousand, three".