1123305056 has 24 divisors (see below), whose sum is σ = 2341596600. Its totient is φ = 528613888.

The previous prime is 1123305041. The next prime is 1123305067. The reversal of 1123305056 is 6505033211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031906 + ... + 1032993.

It is an arithmetic number, because the mean of its divisors is an integer number (97566525).

Almost surely, 2^1123305056 is an apocalyptic number.

1123305056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1123305056 is an abundant number, since it is smaller than the sum of its proper divisors (1218291544).

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

1123305056 is a wasteful number, since it uses less digits than its factorization.

1123305056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064926 (or 2064918 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1123305056 is about 33515.7434051522. The cubic root of 1123305056 is about 1039.5193340937.

Adding to 1123305056 its reverse (6505033211), we get a palindrome (7628338267).

The spelling of 1123305056 in words is "one billion, one hundred twenty-three million, three hundred five thousand, fifty-six".