1123320208 has 20 divisors (see below), whose sum is σ = 2178259020. Its totient is φ = 561188864.

The previous prime is 1123320193. The next prime is 1123320217. The reversal of 1123320208 is 8020233211.

It can be written as a sum of positive squares in 2 ways, for example, as 265298944 + 858021264 = 16288^2 + 29292^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9373 + ... + 48316.

It is an arithmetic number, because the mean of its divisors is an integer number (108912951).

Almost surely, 2^1123320208 is an apocalyptic number.

It is an amenable number.

1123320208 is a deficient number, since it is larger than the sum of its proper divisors (1054938812).

1123320208 is a wasteful number, since it uses less digits than its factorization.

1123320208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58914 (or 58908 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1123320208 is about 33515.9694474142. The cubic root of 1123320208 is about 1039.5240080173.

Adding to 1123320208 its reverse (8020233211), we get a palindrome (9143553419).

The spelling of 1123320208 in words is "one billion, one hundred twenty-three million, three hundred twenty thousand, two hundred eight".