1123318 has 32 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 440640.

The previous prime is 1123307. The next prime is 1123319. The reversal of 1123318 is 8133211.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1123295 and 1123304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10855 + ... + 10957.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2^1123318 is an apocalyptic number.

1123318 is a deficient number, since it is larger than the sum of its proper divisors (973322).

1123318 is a wasteful number, since it uses less digits than its factorization.

1123318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172.

The product of its digits is 144, while the sum is 19.

The square root of 1123318 is about 1059.8669727848. The cubic root of 1123318 is about 103.9523326920.

Adding to 1123318 its reverse (8133211), we get a palindrome (9256529).

It can be divided in two parts, 1123 and 318, that added together give a palindrome (1441).

The spelling of 1123318 in words is "one million, one hundred twenty-three thousand, three hundred eighteen".