30021113320 has 128 divisors (see below), whose sum is σ = 75024403200. Its totient is φ = 10720512000.

The previous prime is 30021113281. The next prime is 30021113323. The reversal of 30021113320 is 2331112003.

It is a junction number, because it is equal to n+sod(n) for n = 30021113294 and 30021113303.

It is not an unprimeable number, because it can be changed into a prime (30021113323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5910622 + ... + 5915698.

It is an arithmetic number, because the mean of its divisors is an integer number (586128150).

Almost surely, 2^30021113320 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 30021113320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37512201600).

30021113320 is an abundant number, since it is smaller than the sum of its proper divisors (45003289880).

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

30021113320 is a wasteful number, since it uses less digits than its factorization.

30021113320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339 (or 5335 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30021113320 its reverse (2331112003), we get a palindrome (32352225323).

It can be divided in two parts, 30021 and 113320, that added together give a palindrome (143341).

The spelling of 30021113320 in words is "thirty billion, twenty-one million, one hundred thirteen thousand, three hundred twenty".