20020300020 has 72 divisors (see below), whose sum is σ = 69403711104. Its totient is φ = 4576068288.

The previous prime is 20020300009. The next prime is 20020300031. The reversal of 20020300020 is 2000302002.

It is an interprime number because it is at equal distance from previous prime (20020300009) and next prime (20020300031).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 20020299975 and 20020300011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7943304 + ... + 7945823.

It is an arithmetic number, because the mean of its divisors is an integer number (963940432).

Almost surely, 2^20020300020 is an apocalyptic number.

20020300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020300020 is an abundant number, since it is smaller than the sum of its proper divisors (49383411084).

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

20020300020 is a wasteful number, since it uses less digits than its factorization.

20020300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15889149 (or 15889144 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 20020300020 its reverse (2000302002), we get a palindrome (22020602022).

The spelling of 20020300020 in words is "twenty billion, twenty million, three hundred thousand, twenty".