1123323112 has 16 divisors (see below), whose sum is σ = 2129897700. Its totient is φ = 555350400.

The previous prime is 1123323109. The next prime is 1123323119. The reversal of 1123323112 is 2113233211.

It can be written as a sum of positive squares in 2 ways, for example, as 961372036 + 161951076 = 31006^2 + 12726^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1123323112.

It is not an unprimeable number, because it can be changed into a prime (1123323119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788139 + ... + 789562.

Almost surely, 2^1123323112 is an apocalyptic number.

It is an amenable number.

1123323112 is a deficient number, since it is larger than the sum of its proper divisors (1006574588).

1123323112 is a wasteful number, since it uses less digits than its factorization.

1123323112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577796 (or 1577792 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1123323112 is about 33516.0127700179. The cubic root of 1123323112 is about 1039.5249038067.

Adding to 1123323112 its reverse (2113233211), we get a palindrome (3236556323).

The spelling of 1123323112 in words is "one billion, one hundred twenty-three million, three hundred twenty-three thousand, one hundred twelve".