20303212020 has 192 divisors, whose sum is σ = 71859734016. Its totient is φ = 4167936000.

The previous prime is 20303211991. The next prime is 20303212031. The reversal of 20303212020 is 2021230302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151770 + ... + 252270.

It is an arithmetic number, because the mean of its divisors is an integer number (374269448).

Almost surely, 2^20303212020 is an apocalyptic number.

20303212020 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 20303212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35929867008).

20303212020 is an abundant number, since it is smaller than the sum of its proper divisors (51556521996).

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

20303212020 is a wasteful number, since it uses less digits than its factorization.

20303212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100570 (or 100568 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20303212020 its reverse (2021230302), we get a palindrome (22324442322).

The spelling of 20303212020 in words is "twenty billion, three hundred three million, two hundred twelve thousand, twenty".