30421202020 has 96 divisors (see below), whose sum is σ = 70558096896. Its totient is φ = 10925376000.

The previous prime is 30421201991. The next prime is 30421202039. The reversal of 30421202020 is 2020212403.

It is a junction number, because it is equal to n+sod(n) for n = 30421201985 and 30421202003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10286382 + ... + 10289338.

It is an arithmetic number, because the mean of its divisors is an integer number (734980176).

Almost surely, 2^30421202020 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 30421202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35279048448).

30421202020 is an abundant number, since it is smaller than the sum of its proper divisors (40136894876).

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

30421202020 is a wasteful number, since it uses less digits than its factorization.

30421202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30421202020 its reverse (2020212403), we get a palindrome (32441414423).

The spelling of 30421202020 in words is "thirty billion, four hundred twenty-one million, two hundred two thousand, twenty".