2133231300 has 324 divisors, whose sum is σ = 7258376580. Its totient is φ = 523031040.

The previous prime is 2133231283. The next prime is 2133231343. The reversal of 2133231300 is 31323312.

2133231300 is a `hidden beast` number, since 2 + 1 + 332 + 31 + 300 = 666.

2133231300 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 20358144 + 2112873156 = 4512^2 + 45966^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 45387877 + ... + 45387923.

Almost surely, 2^2133231300 is an apocalyptic number.

2133231300 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 2133231300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3629188290).

2133231300 is an abundant number, since it is smaller than the sum of its proper divisors (5125145280).

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

2133231300 is a wasteful number, since it uses less digits than its factorization.

2133231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2133231300 is about 46186.9169787289. The cubic root of 2133231300 is about 1287.2986557928.

Adding to 2133231300 its reverse (31323312), we get a palindrome (2164554612).

The spelling of 2133231300 in words is "two billion, one hundred thirty-three million, two hundred thirty-one thousand, three hundred".