20023304020 has 12 divisors (see below), whose sum is σ = 42048938484. Its totient is φ = 8009321600.

The previous prime is 20023303981. The next prime is 20023304047. The reversal of 20023304020 is 2040332002.

It can be written as a sum of positive squares in 2 ways, for example, as 4828304196 + 15194999824 = 69486^2 + 123268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20023303985 and 20023304003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500582581 + ... + 500582620.

It is an arithmetic number, because the mean of its divisors is an integer number (3504078207).

Almost surely, 2^20023304020 is an apocalyptic number.

20023304020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20023304020 is an abundant number, since it is smaller than the sum of its proper divisors (22025634464).

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

20023304020 is a wasteful number, since it uses less digits than its factorization.

20023304020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001165210 (or 1001165208 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20023304020 its reverse (2040332002), we get a palindrome (22063636022).

The spelling of 20023304020 in words is "twenty billion, twenty-three million, three hundred four thousand, twenty".