2123031200 has 36 divisors (see below), whose sum is σ = 5182851870. Its totient is φ = 849212160.

The previous prime is 2123031193. The next prime is 2123031223. The reversal of 2123031200 is 21303212.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 966215056 + 1156816144 = 31084^2 + 34012^2 .

It is a super-2 number, since 2×2123031200² = 9014522952346880000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1326095 + ... + 1327694.

Almost surely, 2^2123031200 is an apocalyptic number.

2123031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123031200 is an abundant number, since it is smaller than the sum of its proper divisors (3059820670).

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

2123031200 is a wasteful number, since it uses less digits than its factorization.

2123031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653809 (or 2653796 counting only the distinct ones).

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

The square root of 2123031200 is about 46076.3627036684. The cubic root of 2123031200 is about 1285.2436264342.

Adding to 2123031200 its reverse (21303212), we get a palindrome (2144334412).

The spelling of 2123031200 in words is "two billion, one hundred twenty-three million, thirty-one thousand, two hundred".