30020020000 has 240 divisors, whose sum is σ = 76846426272. Its totient is φ = 11531520000.

The previous prime is 30020019989. The next prime is 30020020001. The reversal of 30020020000 is 2002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020020001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57619740 + ... + 57620260.

Almost surely, 2^30020020000 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 30020020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38423213136).

30020020000 is an abundant number, since it is smaller than the sum of its proper divisors (46826406272).

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

30020020000 is an equidigital number, since it uses as much as digits as its factorization.

30020020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

Adding to 30020020000 its reverse (2002003), we get a palindrome (30022022003).

The spelling of 30020020000 in words is "thirty billion, twenty million, twenty thousand".