11204042240 has 80 divisors (see below), whose sum is σ = 27069316560. Its totient is φ = 4447272960.

The previous prime is 11204042231. The next prime is 11204042251. The reversal of 11204042240 is 4224040211.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318656 + ... + 352064.

It is an arithmetic number, because the mean of its divisors is an integer number (338366457).

Almost surely, 2^11204042240 is an apocalyptic number.

11204042240 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 11204042240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13534658280).

11204042240 is an abundant number, since it is smaller than the sum of its proper divisors (15865274320).

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

11204042240 is an equidigital number, since it uses as much as digits as its factorization.

11204042240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33563 (or 33547 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 11204042240 its reverse (4224040211), we get a palindrome (15428082451).

The spelling of 11204042240 in words is "eleven billion, two hundred four million, forty-two thousand, two hundred forty".