30321030220 has 72 divisors (see below), whose sum is σ = 69632393040. Its totient is φ = 11084486400.

The previous prime is 30321030197. The next prime is 30321030239. The reversal of 30321030220 is 2203012303.

It is a junction number, because it is equal to n+sod(n) for n = 30321030194 and 30321030203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296971 + ... + 385789.

It is an arithmetic number, because the mean of its divisors is an integer number (967116570).

Almost surely, 2^30321030220 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 30321030220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34816196520).

30321030220 is an abundant number, since it is smaller than the sum of its proper divisors (39311362820).

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

30321030220 is a wasteful number, since it uses less digits than its factorization.

30321030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88955 (or 88940 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30321030220 its reverse (2203012303), we get a palindrome (32524042523).

The spelling of 30321030220 in words is "thirty billion, three hundred twenty-one million, thirty thousand, two hundred twenty".