11124456780 has 48 divisors (see below), whose sum is σ = 31172972544. Its totient is φ = 2964189120.

The previous prime is 11124456773. The next prime is 11124456781. The reversal of 11124456780 is 8765442111.

11124456780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11124456781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4725 + ... + 149235.

It is an arithmetic number, because the mean of its divisors is an integer number (649436928).

Almost surely, 2^11124456780 is an apocalyptic number.

11124456780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11124456780 is an abundant number, since it is smaller than the sum of its proper divisors (20048515764).

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

11124456780 is a wasteful number, since it uses less digits than its factorization.

11124456780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145806 (or 145804 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

Adding to 11124456780 its reverse (8765442111), we get a palindrome (19889898891).

The spelling of 11124456780 in words is "eleven billion, one hundred twenty-four million, four hundred fifty-six thousand, seven hundred eighty".