11104438820 has 24 divisors (see below), whose sum is σ = 23325309504. Its totient is φ = 4440634976.

The previous prime is 11104438799. The next prime is 11104438823. The reversal of 11104438820 is 2883440111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11104438823) by changing a digit.

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, 10859 + ... + 149421.

It is an arithmetic number, because the mean of its divisors is an integer number (971887896).

Almost surely, 2^11104438820 is an apocalyptic number.

11104438820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11104438820 is an abundant number, since it is smaller than the sum of its proper divisors (12220870684).

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

11104438820 is a wasteful number, since it uses less digits than its factorization.

11104438820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142579 (or 142577 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

Adding to 11104438820 its reverse (2883440111), we get a palindrome (13987878931).

The spelling of 11104438820 in words is "eleven billion, one hundred four million, four hundred thirty-eight thousand, eight hundred twenty".