2011001100 has 36 divisors (see below), whose sum is σ = 5818497384. Its totient is φ = 536266880.

The previous prime is 2011001071. The next prime is 2011001131. The reversal of 2011001100 is 11001102.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3351369 + ... + 3351968.

Almost surely, 2^2011001100 is an apocalyptic number.

2011001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011001100 is an abundant number, since it is smaller than the sum of its proper divisors (3807496284).

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

2011001100 is a wasteful number, since it uses less digits than its factorization.

2011001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703354 (or 6703347 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 2011001100 is about 44844.1869142479. The cubic root of 2011001100 is about 1262.2269134530.

Adding to 2011001100 its reverse (11001102), we get a palindrome (2022002202).

The spelling of 2011001100 in words is "two billion, eleven million, one thousand, one hundred".