1123313312 has 48 divisors (see below), whose sum is σ = 2418196032. Its totient is φ = 509406720.

The previous prime is 1123313293. The next prime is 1123313327. The reversal of 1123313312 is 2133133211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157373 + ... + 164355.

It is an arithmetic number, because the mean of its divisors is an integer number (50379084).

Almost surely, 2^1123313312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123313312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209098016).

1123313312 is an abundant number, since it is smaller than the sum of its proper divisors (1294882720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123313312 is a wasteful number, since it uses less digits than its factorization.

1123313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7461 (or 7453 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 1123313312 is about 33515.8665709243. The cubic root of 1123313312 is about 1039.5218808197.

Adding to 1123313312 its reverse (2133133211), we get a palindrome (3256446523).

The spelling of 1123313312 in words is "one billion, one hundred twenty-three million, three hundred thirteen thousand, three hundred twelve".