11124452240 has 80 divisors (see below), whose sum is σ = 28465606656. Its totient is φ = 4009420800.

The previous prime is 11124452233. The next prime is 11124452243. The reversal of 11124452240 is 4225442111.

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

It is not an unprimeable number, because it can be changed into a prime (11124452243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43505 + ... + 155375.

Almost surely, 2^11124452240 is an apocalyptic number.

11124452240 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 11124452240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14232803328).

11124452240 is an abundant number, since it is smaller than the sum of its proper divisors (17341154416).

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

11124452240 is a wasteful number, since it uses less digits than its factorization.

11124452240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112008 (or 112002 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 11124452240 its reverse (4225442111), we get a palindrome (15349894351).

It can be divided in two parts, 11124 and 452240, that added together give a palindrome (463364).

The spelling of 11124452240 in words is "eleven billion, one hundred twenty-four million, four hundred fifty-two thousand, two hundred forty".