200421502023320 has 64 divisors (see below), whose sum is σ = 470739295319040. Its totient is φ = 76652948592000.

The previous prime is 200421502023293. The next prime is 200421502023397. The reversal of 200421502023320 is 23320205124002.

It is a self number, because there is not a number n which added to its sum of digits gives 200421502023320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40351916 + ... + 45045755.

It is an arithmetic number, because the mean of its divisors is an integer number (7355301489360).

Almost surely, 2^{200421502023320} is an apocalyptic number.

200421502023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200421502023320 is an abundant number, since it is smaller than the sum of its proper divisors (270317793295720).

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

200421502023320 is a wasteful number, since it uses less digits than its factorization.

200421502023320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85400256 (or 85400252 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 200421502023320 its reverse (23320205124002), we get a palindrome (223741707147322).

The spelling of 200421502023320 in words is "two hundred trillion, four hundred twenty-one billion, five hundred two million, twenty-three thousand, three hundred twenty".