20013030020 has 192 divisors, whose sum is σ = 47852259840. Its totient is φ = 6990077952.

The previous prime is 20013029983. The next prime is 20013030031. The reversal of 20013030020 is 2003031002.

It is a junction number, because it is equal to n+sod(n) for n = 20013029983 and 20013030010.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45175919 + ... + 45176361.

It is an arithmetic number, because the mean of its divisors is an integer number (249230520).

Almost surely, 2^20013030020 is an apocalyptic number.

20013030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20013030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23926129920).

20013030020 is an abundant number, since it is smaller than the sum of its proper divisors (27839229820).

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

20013030020 is a wasteful number, since it uses less digits than its factorization.

20013030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20013030020 its reverse (2003031002), we get a palindrome (22016061022).

The spelling of 20013030020 in words is "twenty billion, thirteen million, thirty thousand, twenty".