11124032240 has 80 divisors (see below), whose sum is σ = 26680003680. Its totient is φ = 4310184960.

The previous prime is 11124032237. The next prime is 11124032291. The reversal of 11124032240 is 4223042111.

It is a tau number, because it is divible by the number of its divisors (80).

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

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, 669635 + ... + 686045.

It is an arithmetic number, because the mean of its divisors is an integer number (333500046).

Almost surely, 2^11124032240 is an apocalyptic number.

11124032240 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 11124032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13340001840).

11124032240 is an abundant number, since it is smaller than the sum of its proper divisors (15555971440).

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

11124032240 is a wasteful number, since it uses less digits than its factorization.

11124032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16690 (or 16684 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11124032240 its reverse (4223042111), we get a palindrome (15347074351).

The spelling of 11124032240 in words is "eleven billion, one hundred twenty-four million, thirty-two thousand, two hundred forty".