520501311330 has 384 divisors, whose sum is σ = 1706799886848. Its totient is φ = 98841600000.

The previous prime is 520501311329. The next prime is 520501311403. The reversal of 520501311330 is 33113105025.

520501311330 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 520501311330.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 33355530 + ... + 33371130.

It is an arithmetic number, because the mean of its divisors is an integer number (4444791372).

Almost surely, 2^520501311330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520501311330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853399943424).

520501311330 is an abundant number, since it is smaller than the sum of its proper divisors (1186298575518).

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

520501311330 is a wasteful number, since it uses less digits than its factorization.

520501311330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15754 (or 15743 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 520501311330 its reverse (33113105025), we get a palindrome (553614416355).

The spelling of 520501311330 in words is "five hundred twenty billion, five hundred one million, three hundred eleven thousand, three hundred thirty".