2321510212 has 48 divisors (see below), whose sum is σ = 4924846080. Its totient is φ = 935344800.

The previous prime is 2321510209. The next prime is 2321510297. The reversal of 2321510212 is 2120151232.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2321510212.

It is an unprimeable number.

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, 53037 + ... + 86347.

It is an arithmetic number, because the mean of its divisors is an integer number (102600960).

Almost surely, 2^2321510212 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 2321510212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2462423040).

2321510212 is an abundant number, since it is smaller than the sum of its proper divisors (2603335868).

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

2321510212 is a wasteful number, since it uses less digits than its factorization.

2321510212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33472 (or 33470 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2321510212 is about 48182.0527997718. The cubic root of 2321510212 is about 1324.1083759554.

Adding to 2321510212 its reverse (2120151232), we get a palindrome (4441661444).

The spelling of 2321510212 in words is "two billion, three hundred twenty-one million, five hundred ten thousand, two hundred twelve".