11000120000 has 70 divisors (see below), whose sum is σ = 27276821748. Its totient is φ = 4400032000.

The previous prime is 11000119997. The next prime is 11000120009. The reversal of 11000120000 is 2100011.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (11000120009) 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 9 ways as a sum of consecutive naturals, for example, 97502 + ... + 177501.

Almost surely, 2^11000120000 is an apocalyptic number.

11000120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000120000 is an abundant number, since it is smaller than the sum of its proper divisors (16276701748).

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

11000120000 is an frugal number, since it uses more digits than its factorization.

11000120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275035 (or 275010 counting only the distinct ones).

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

Adding to 11000120000 its reverse (2100011), we get a palindrome (11002220011).

The spelling of 11000120000 in words is "eleven billion, one hundred twenty thousand".