1123423344 has 200 divisors, whose sum is σ = 3419111520. Its totient is φ = 355622400.

The previous prime is 1123423313. The next prime is 1123423349. The reversal of 1123423344 is 4433243211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123423349) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 2668254 + ... + 2668674.

Almost surely, 2^1123423344 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 1123423344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709555760).

1123423344 is an abundant number, since it is smaller than the sum of its proper divisors (2295688176).

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

1123423344 is a wasteful number, since it uses less digits than its factorization.

1123423344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 526 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1123423344 is about 33517.5080219279. The cubic root of 1123423344 is about 1039.5558211686. Note that the first 3 decimals are identical.

Adding to 1123423344 its reverse (4433243211), we get a palindrome (5556666555).

The spelling of 1123423344 in words is "one billion, one hundred twenty-three million, four hundred twenty-three thousand, three hundred forty-four".