11123004424 has 128 divisors (see below), whose sum is σ = 25560023040. Its totient is φ = 4435022592.

The previous prime is 11123004419. The next prime is 11123004467. The reversal of 11123004424 is 42440032111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11123004395 and 11123004404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8668887 + ... + 8670169.

It is an arithmetic number, because the mean of its divisors is an integer number (199687680).

Almost surely, 2^11123004424 is an apocalyptic number.

11123004424 is a gapful number since it is divisible by the number (14) 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 11123004424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12780011520).

11123004424 is an abundant number, since it is smaller than the sum of its proper divisors (14437018616).

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

11123004424 is a wasteful number, since it uses less digits than its factorization.

11123004424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11123004424 its reverse (42440032111), we get a palindrome (53563036535).

The spelling of 11123004424 in words is "eleven billion, one hundred twenty-three million, four thousand, four hundred twenty-four".