2011800824 has 16 divisors (see below), whose sum is σ = 4115047320. Its totient is φ = 914454880.

The previous prime is 2011800809. The next prime is 2011800829. The reversal of 2011800824 is 4280081102.

It is a junction number, because it is equal to n+sod(n) for n = 2011800793 and 2011800802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011800829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11430599 + ... + 11430774.

Almost surely, 2^2011800824 is an apocalyptic number.

It is an amenable number.

2011800824 is an abundant number, since it is smaller than the sum of its proper divisors (2103246496).

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

2011800824 is a wasteful number, since it uses less digits than its factorization.

2011800824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22861390 (or 22861386 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 2011800824 is about 44853.1027243378. The cubic root of 2011800824 is about 1262.3942097939.

Adding to 2011800824 its reverse (4280081102), we get a palindrome (6291881926).

The spelling of 2011800824 in words is "two billion, eleven million, eight hundred thousand, eight hundred twenty-four".