2111031200 has 72 divisors (see below), whose sum is σ = 5169005100. Its totient is φ = 841881600.

The previous prime is 2111031187. The next prime is 2111031227. The reversal of 2111031200 is 21301112.

It can be written as a sum of positive squares in 6 ways, for example, as 727488784 + 1383542416 = 26972^2 + 37196^2 .

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, 275420 + ... + 282980.

Almost surely, 2^2111031200 is an apocalyptic number.

2111031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2584502550).

2111031200 is an abundant number, since it is smaller than the sum of its proper divisors (3057973900).

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

2111031200 is a wasteful number, since it uses less digits than its factorization.

2111031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7930 (or 7917 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2111031200 is about 45945.9595612062. The cubic root of 2111031200 is about 1282.8175240108.

Adding to 2111031200 its reverse (21301112), we get a palindrome (2132332312).

The spelling of 2111031200 in words is "two billion, one hundred eleven million, thirty-one thousand, two hundred".