11104721000 has 128 divisors (see below), whose sum is σ = 27445392000. Its totient is φ = 4205505600.

The previous prime is 11104720997. The next prime is 11104721039. The reversal of 11104721000 is 12740111.

It is a self number, because there is not a number n which added to its sum of digits gives 11104721000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6858191 + ... + 6859809.

It is an arithmetic number, because the mean of its divisors is an integer number (214417125).

Almost surely, 2^11104721000 is an apocalyptic number.

11104721000 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 11104721000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13722696000).

11104721000 is an abundant number, since it is smaller than the sum of its proper divisors (16340671000).

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

11104721000 is an equidigital number, since it uses as much as digits as its factorization.

11104721000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

The spelling of 11104721000 in words is "eleven billion, one hundred four million, seven hundred twenty-one thousand".