204203211320 has 64 divisors (see below), whose sum is σ = 461738340000. Its totient is φ = 81276185088.

The previous prime is 204203211271. The next prime is 204203211427. The reversal of 204203211320 is 23112302402.

204203211320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204203211320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 204203211292 and 204203211301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18067031 + ... + 18078329.

Almost surely, 2^204203211320 is an apocalyptic number.

204203211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204203211320 is an abundant number, since it is smaller than the sum of its proper divisors (257535128680).

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

204203211320 is a wasteful number, since it uses less digits than its factorization.

204203211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13512 (or 13508 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 204203211320 its reverse (23112302402), we get a palindrome (227315513722).

The spelling of 204203211320 in words is "two hundred four billion, two hundred three million, two hundred eleven thousand, three hundred twenty".