1123604323 has 12 divisors (see below), whose sum is σ = 1158687504. Its totient is φ = 1089362400.

The previous prime is 1123604249. The next prime is 1123604357. The reversal of 1123604323 is 3234063211.

It is a de Polignac number, because none of the positive numbers 2^k-1123604323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123604023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262065 + ... + 266317.

It is an arithmetic number, because the mean of its divisors is an integer number (96557292).

Almost surely, 2^1123604323 is an apocalyptic number.

1123604323 is a deficient number, since it is larger than the sum of its proper divisors (35083181).

1123604323 is an frugal number, since it uses more digits than its factorization.

1123604323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446 (or 4385 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1123604323 is about 33520.2076813375. The cubic root of 1123604323 is about 1039.6116409306.

Adding to 1123604323 its reverse (3234063211), we get a palindrome (4357667534).

The spelling of 1123604323 in words is "one billion, one hundred twenty-three million, six hundred four thousand, three hundred twenty-three".