1123024420 has 192 divisors, whose sum is σ = 3017710080. Its totient is φ = 342171648.

The previous prime is 1123024417. The next prime is 1123024447. The reversal of 1123024420 is 244203211.

1123024420 is nontrivially palindromic in base 16.

It is a super-2 number, since 2×1123024420² = 2522367695832672800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3657907 + ... + 3658213.

It is an arithmetic number, because the mean of its divisors is an integer number (15717240).

Almost surely, 2^1123024420 is an apocalyptic number.

1123024420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123024420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508855040).

1123024420 is an abundant number, since it is smaller than the sum of its proper divisors (1894685660).

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

1123024420 is a wasteful number, since it uses less digits than its factorization.

1123024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1123024420 is about 33511.5565141340. The cubic root of 1123024420 is about 1039.4327589632.

Adding to 1123024420 its reverse (244203211), we get a palindrome (1367227631).

The spelling of 1123024420 in words is "one billion, one hundred twenty-three million, twenty-four thousand, four hundred twenty".