1123345256 has 32 divisors (see below), whose sum is σ = 2335430880. Its totient is φ = 502238400.

The previous prime is 1123345241. The next prime is 1123345259. The reversal of 1123345256 is 6525433211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1123345259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99266 + ... + 110001.

It is an arithmetic number, because the mean of its divisors is an integer number (72982215).

Almost surely, 2^1123345256 is an apocalyptic number.

It is an amenable number.

1123345256 is an abundant number, since it is smaller than the sum of its proper divisors (1212085624).

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

1123345256 is a wasteful number, since it uses less digits than its factorization.

1123345256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209345 (or 209341 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 1123345256 is about 33516.3431179477. The cubic root of 1123345256 is about 1039.5317344589.

Adding to 1123345256 its reverse (6525433211), we get a palindrome (7648778467).

The spelling of 1123345256 in words is "one billion, one hundred twenty-three million, three hundred forty-five thousand, two hundred fifty-six".