520430303320000 has 70 divisors (see below), whose sum is σ = 1290498012484208. Its totient is φ = 208172121312000.

The previous prime is 520430303319977. The next prime is 520430303320007. The reversal of 520430303320000 is 23303034025.

It is a super-2 number, since 2×520430303320000² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520430303320007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6505338792 + ... + 6505418791.

Almost surely, 2^{520430303320000} is an apocalyptic number.

520430303320000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520430303320000 is an abundant number, since it is smaller than the sum of its proper divisors (770067709164208).

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

520430303320000 is an equidigital number, since it uses as much as digits as its factorization.

520430303320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13010757615 (or 13010757590 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 25.

Adding to 520430303320000 its reverse (23303034025), we get a palindrome (520453606354025).

The spelling of 520430303320000 in words is "five hundred twenty trillion, four hundred thirty billion, three hundred three million, three hundred twenty thousand".