6321130530 has 128 divisors (see below), whose sum is σ = 17904208896. Its totient is φ = 1408070400.

The previous prime is 6321130523. The next prime is 6321130573. The reversal of 6321130530 is 350311236.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6321130530.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 970585 + ... + 977075.

It is an arithmetic number, because the mean of its divisors is an integer number (139876632).

Almost surely, 2^6321130530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6321130530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8952104448).

6321130530 is an abundant number, since it is smaller than the sum of its proper divisors (11583078366).

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

6321130530 is a wasteful number, since it uses less digits than its factorization.

6321130530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 6321130530 is about 79505.5377316574. The cubic root of 6321130530 is about 1848.9773291035.

Adding to 6321130530 its reverse (350311236), we get a palindrome (6671441766).

The spelling of 6321130530 in words is "six billion, three hundred twenty-one million, one hundred thirty thousand, five hundred thirty".