30303320020 has 48 divisors (see below), whose sum is σ = 67161507840. Its totient is φ = 11453325696.

The previous prime is 30303320009. The next prime is 30303320123. The reversal of 30303320020 is 2002330303.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30303319976 and 30303320003.

It is a congruent number.

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, 41434 + ... + 249646.

It is an arithmetic number, because the mean of its divisors is an integer number (1399198080).

Almost surely, 2^30303320020 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 30303320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33580753920).

30303320020 is an abundant number, since it is smaller than the sum of its proper divisors (36858187820).

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

30303320020 is a wasteful number, since it uses less digits than its factorization.

30303320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208624 (or 208622 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

Adding to 30303320020 its reverse (2002330303), we get a palindrome (32305650323).

The spelling of 30303320020 in words is "thirty billion, three hundred three million, three hundred twenty thousand, twenty".