2123320304 has 20 divisors (see below), whose sum is σ = 4701638064. Its totient is φ = 909994368.

The previous prime is 2123320253. The next prime is 2123320313. The reversal of 2123320304 is 4030233212.

It is a super-2 number, since 2×2123320304² = 9016978226757304832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9478997 + ... + 9479220.

Almost surely, 2^2123320304 is an apocalyptic number.

It is an amenable number.

2123320304 is an abundant number, since it is smaller than the sum of its proper divisors (2578317760).

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

2123320304 is a wasteful number, since it uses less digits than its factorization.

2123320304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18958232 (or 18958226 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2123320304 is about 46079.4998236743. The cubic root of 2123320304 is about 1285.3019631822.

Adding to 2123320304 its reverse (4030233212), we get a palindrome (6153553516).

The spelling of 2123320304 in words is "two billion, one hundred twenty-three million, three hundred twenty thousand, three hundred four".