1123103 has 4 divisors (see below), whose sum is σ = 1126488. Its totient is φ = 1119720.

The previous prime is 1123093. The next prime is 1123127. The reversal of 1123103 is 3013211.

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 1123103 - 2²⁰ = 74527 is a prime.

It is a super-2 number, since 2×1123103² = 2522720697218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123303) 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, 1133 + ... + 1878.

It is an arithmetic number, because the mean of its divisors is an integer number (281622).

2^1123103 is an apocalyptic number.

1123103 is a deficient number, since it is larger than the sum of its proper divisors (3385).

1123103 is an equidigital number, since it uses as much as digits as its factorization.

1123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1123103 is about 1059.7655401078. The cubic root of 1123103 is about 103.9457002046.

Adding to 1123103 its reverse (3013211), we get a palindrome (4136314).

The spelling of 1123103 in words is "one million, one hundred twenty-three thousand, one hundred three".