11002001000 has 32 divisors (see below), whose sum is σ = 25744684680. Its totient is φ = 4400800000.

The previous prime is 11002000991. The next prime is 11002001011. The reversal of 11002001000 is 10020011.

It is a happy number.

11002001000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 793323556 + 10208677444 = 28166^2 + 101038^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5500001 + ... + 5502000.

Almost surely, 2^11002001000 is an apocalyptic number.

11002001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002001000 is an abundant number, since it is smaller than the sum of its proper divisors (14742683680).

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

11002001000 is a wasteful number, since it uses less digits than its factorization.

11002001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002022 (or 11002008 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 11002001000 its reverse (10020011), we get a palindrome (11012021011).

The spelling of 11002001000 in words is "eleven billion, two million, one thousand".