11909201100 has 72 divisors (see below), whose sum is σ = 35388599568. Its totient is φ = 3089952000.

The previous prime is 11909201089. The next prime is 11909201113. The reversal of 11909201100 is 110290911.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 525351 + ... + 547550.

Almost surely, 2^11909201100 is an apocalyptic number.

11909201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11909201100 is an abundant number, since it is smaller than the sum of its proper divisors (23479398468).

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

11909201100 is a wasteful number, since it uses less digits than its factorization.

11909201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072955 (or 1072948 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The spelling of 11909201100 in words is "eleven billion, nine hundred nine million, two hundred one thousand, one hundred".