1123203 has 8 divisors (see below), whose sum is σ = 1532608. Its totient is φ = 731304.

The previous prime is 1123189. The next prime is 1123211. The reversal of 1123203 is 3023211.

It is a happy number.

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

It is not a de Polignac number, because 1123203 - 2¹⁰ = 1122179 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 4225 + ... + 4482.

It is an arithmetic number, because the mean of its divisors is an integer number (191576).

2^1123203 is an apocalyptic number.

1123203 is a deficient number, since it is larger than the sum of its proper divisors (409405).

1123203 is an equidigital number, since it uses as much as digits as its factorization.

1123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8753.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1123203 is about 1059.8127193047. The cubic root of 1123203 is about 103.9487851877.

Adding to 1123203 its reverse (3023211), we get a palindrome (4146414).

It can be divided in two parts, 1123 and 203, that added together give a triangular number (1326 = T₅₁).

The spelling of 1123203 in words is "one million, one hundred twenty-three thousand, two hundred three".