203223202020 has 240 divisors, whose sum is σ = 650834908416. Its totient is φ = 53071200000.

The previous prime is 203223201997. The next prime is 203223202027. The reversal of 203223202020 is 20202322302.

203223202020 is a `hidden beast` number, since 2 + 0 + 322 + 320 + 2 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203223201984 and 203223202002.

It is not an unprimeable number, because it can be changed into a prime (203223202027) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17362170 + ... + 17373870.

Almost surely, 2^203223202020 is an apocalyptic number.

203223202020 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 203223202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325417454208).

203223202020 is an abundant number, since it is smaller than the sum of its proper divisors (447611706396).

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

203223202020 is a wasteful number, since it uses less digits than its factorization.

203223202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11944 (or 11933 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 203223202020 its reverse (20202322302), we get a palindrome (223425524322).

The spelling of 203223202020 in words is "two hundred three billion, two hundred twenty-three million, two hundred two thousand, twenty".