2123312328 has 96 divisors (see below), whose sum is σ = 5817801600. Its totient is φ = 699560064.

The previous prime is 2123312281. The next prime is 2123312329. The reversal of 2123312328 is 8232133212.

It is a happy number.

2123312328 is a `hidden beast` number, since 2 + 1 + 2 + 331 + 2 + 328 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2123312329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2804526 + ... + 2805282.

It is an arithmetic number, because the mean of its divisors is an integer number (60602100).

Almost surely, 2^2123312328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123312328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2908900800).

2123312328 is an abundant number, since it is smaller than the sum of its proper divisors (3694489272).

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

2123312328 is a wasteful number, since it uses less digits than its factorization.

2123312328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1164 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2123312328 is about 46079.4132775147. The cubic root of 2123312328 is about 1285.3003538189.

The spelling of 2123312328 in words is "two billion, one hundred twenty-three million, three hundred twelve thousand, three hundred twenty-eight".