1123323320 has 64 divisors (see below), whose sum is σ = 3040588800. Its totient is φ = 364867200.

The previous prime is 1123323221. The next prime is 1123323389. The reversal of 1123323320 is 233233211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1123323292 and 1123323301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100256 + ... + 110895.

It is an arithmetic number, because the mean of its divisors is an integer number (47509200).

Almost surely, 2^1123323320 is an apocalyptic number.

1123323320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123323320 is an abundant number, since it is smaller than the sum of its proper divisors (1917265480).

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

1123323320 is a wasteful number, since it uses less digits than its factorization.

1123323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211188 (or 211184 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1123323320 is about 33516.0158730121. The cubic root of 1123323320 is about 1039.5249679679.

Adding to 1123323320 its reverse (233233211), we get a palindrome (1356556531).

It can be divided in two parts, 1 and 123323320, that added together give a palindrome (123323321).

The spelling of 1123323320 in words is "one billion, one hundred twenty-three million, three hundred twenty-three thousand, three hundred twenty".