2321320000 has 140 divisors (see below), whose sum is σ = 5813151696. Its totient is φ = 919360000.

The previous prime is 2321319997. The next prime is 2321320007. The reversal of 2321320000 is 231232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2321320007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5239779 + ... + 5240221.

Almost surely, 2^2321320000 is an apocalyptic number.

2321320000 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 2321320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2906575848).

2321320000 is an abundant number, since it is smaller than the sum of its proper divisors (3491831696).

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

2321320000 is an equidigital number, since it uses as much as digits as its factorization.

2321320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2321320000 is about 48180.0788708362. The cubic root of 2321320000 is about 1324.0722115396.

Adding to 2321320000 its reverse (231232), we get a palindrome (2321551232).

The spelling of 2321320000 in words is "two billion, three hundred twenty-one million, three hundred twenty thousand".