30520012304 has 80 divisors (see below), whose sum is σ = 62306428800. Its totient is φ = 14465848320.

The previous prime is 30520012291. The next prime is 30520012333. The reversal of 30520012304 is 40321002503.

It is a happy number.

It is a super-2 number, since 2×30520012304² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5610674 + ... + 5616110.

It is an arithmetic number, because the mean of its divisors is an integer number (778830360).

Almost surely, 2^30520012304 is an apocalyptic number.

It is an amenable number.

30520012304 is an abundant number, since it is smaller than the sum of its proper divisors (31786416496).

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

30520012304 is a wasteful number, since it uses less digits than its factorization.

30520012304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728 (or 5722 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 30520012304 its reverse (40321002503), we get a palindrome (70841014807).

The spelling of 30520012304 in words is "thirty billion, five hundred twenty million, twelve thousand, three hundred four".