1123506223 has 4 divisors (see below), whose sum is σ = 1284007120. Its totient is φ = 963005328.

The previous prime is 1123506211. The next prime is 1123506253. The reversal of 1123506223 is 3226053211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123506223 - 2⁵ = 1123506191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123506253) 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 3 ways as a sum of consecutive naturals, for example, 80250438 + ... + 80250451.

It is an arithmetic number, because the mean of its divisors is an integer number (321001780).

Almost surely, 2^1123506223 is an apocalyptic number.

1123506223 is a deficient number, since it is larger than the sum of its proper divisors (160500897).

1123506223 is an equidigital number, since it uses as much as digits as its factorization.

1123506223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160500896.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1123506223 is about 33518.7443529736. The cubic root of 1123506223 is about 1039.5813844699.

Adding to 1123506223 its reverse (3226053211), we get a palindrome (4349559434).

The spelling of 1123506223 in words is "one billion, one hundred twenty-three million, five hundred six thousand, two hundred twenty-three".