1123232223 has 12 divisors (see below), whose sum is σ = 1522612104. Its totient is φ = 736538400.

The previous prime is 1123232219. The next prime is 1123232237. The reversal of 1123232223 is 3222323211.

It is a happy number.

It is not a de Polignac number, because 1123232223 - 2² = 1123232219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123232223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123232203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39148 + ... + 61473.

It is an arithmetic number, because the mean of its divisors is an integer number (126884342).

Almost surely, 2^1123232223 is an apocalyptic number.

1123232223 is a deficient number, since it is larger than the sum of its proper divisors (399379881).

1123232223 is an equidigital number, since it uses as much as digits as its factorization.

1123232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100746 (or 100685 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 1123232223 is about 33514.6568384640. The cubic root of 1123232223 is about 1039.4968667779.

Adding to 1123232223 its reverse (3222323211), we get a palindrome (4345555434).

The spelling of 1123232223 in words is "one billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred twenty-three".