2123310330 has 96 divisors (see below), whose sum is σ = 5676225984. Its totient is φ = 550384128.

The previous prime is 2123310317. The next prime is 2123310331. The reversal of 2123310330 is 330133212.

2123310330 is a `hidden beast` number, since 2 + 1 + 2 + 331 + 0 + 330 = 666.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2123310331) 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 47 ways as a sum of consecutive naturals, for example, 877282 + ... + 879698.

It is an arithmetic number, because the mean of its divisors is an integer number (59127354).

Almost surely, 2^2123310330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123310330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2838112992).

2123310330 is an abundant number, since it is smaller than the sum of its proper divisors (3552915654).

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

2123310330 is a wasteful number, since it uses less digits than its factorization.

2123310330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700 (or 2697 counting only the distinct ones).

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

The square root of 2123310330 is about 46079.3915975461. The cubic root of 2123310330 is about 1285.2999506704.

Adding to 2123310330 its reverse (330133212), we get a palindrome (2453443542).

The spelling of 2123310330 in words is "two billion, one hundred twenty-three million, three hundred ten thousand, three hundred thirty".