20204030020 has 24 divisors (see below), whose sum is σ = 43463305368. Its totient is φ = 7884499200.

The previous prime is 20204030017. The next prime is 20204030053. The reversal of 20204030020 is 2003040202.

It can be written as a sum of positive squares in 4 ways, for example, as 510398464 + 19693631556 = 22592^2 + 140334^2 .

It is a super-2 number, since 2×20204030020² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12318711 + ... + 12320350.

It is an arithmetic number, because the mean of its divisors is an integer number (1810971057).

Almost surely, 2^20204030020 is an apocalyptic number.

20204030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20204030020 is an abundant number, since it is smaller than the sum of its proper divisors (23259275348).

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

20204030020 is a wasteful number, since it uses less digits than its factorization.

20204030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24639111 (or 24639109 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

Adding to 20204030020 its reverse (2003040202), we get a palindrome (22207070222).

The spelling of 20204030020 in words is "twenty billion, two hundred four million, thirty thousand, twenty".