1123203404 has 24 divisors (see below), whose sum is σ = 1995199248. Its totient is φ = 553167360.

The previous prime is 1123203397. The next prime is 1123203409. The reversal of 1123203404 is 4043023211.

It is not an unprimeable number, because it can be changed into a prime (1123203409) 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, 262724 + ... + 266964.

It is an arithmetic number, because the mean of its divisors is an integer number (83133302).

Almost surely, 2^1123203404 is an apocalyptic number.

It is an amenable number.

1123203404 is a deficient number, since it is larger than the sum of its proper divisors (871995844).

1123203404 is a wasteful number, since it uses less digits than its factorization.

1123203404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225 (or 5223 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1123203404 is about 33514.2268894868. The cubic root of 1123203404 is about 1039.4879765070.

Adding to 1123203404 its reverse (4043023211), we get a palindrome (5166226615).

The spelling of 1123203404 in words is "one billion, one hundred twenty-three million, two hundred three thousand, four hundred four".