2011323200 has 42 divisors (see below), whose sum is σ = 4949116086. Its totient is φ = 804528640.

The previous prime is 2011323187. The next prime is 2011323203. The reversal of 2011323200 is 23231102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2849344 + 2008473856 = 1688^2 + 44816^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011323203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626939 + ... + 630138.

Almost surely, 2^2011323200 is an apocalyptic number.

2011323200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011323200 is an abundant number, since it is smaller than the sum of its proper divisors (2937792886).

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

2011323200 is a wasteful number, since it uses less digits than its factorization.

2011323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257099 (or 1257084 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2011323200 is about 44847.7780943493. The cubic root of 2011323200 is about 1262.2942997222.

Adding to 2011323200 its reverse (23231102), we get a palindrome (2034554302).

The spelling of 2011323200 in words is "two billion, eleven million, three hundred twenty-three thousand, two hundred".