2321203120 has 80 divisors (see below), whose sum is σ = 5898693888. Its totient is φ = 845660160.

The previous prime is 2321203111. The next prime is 2321203127. The reversal of 2321203120 is 213021232.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2321203094 and 2321203103.

It is not an unprimeable number, because it can be changed into a prime (2321203127) 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 15 ways as a sum of consecutive naturals, for example, 14632 + ... + 69688.

Almost surely, 2^2321203120 is an apocalyptic number.

2321203120 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 2321203120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2949346944).

2321203120 is an abundant number, since it is smaller than the sum of its proper divisors (3577490768).

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

2321203120 is a wasteful number, since it uses less digits than its factorization.

2321203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55118 (or 55112 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2321203120 is about 48178.8659061211. The cubic root of 2321203120 is about 1324.0499885289.

Adding to 2321203120 its reverse (213021232), we get a palindrome (2534224352).

The spelling of 2321203120 in words is "two billion, three hundred twenty-one million, two hundred three thousand, one hundred twenty".