200421034144320 has 448 divisors, whose sum is σ = 735097366886400. Its totient is φ = 45754076528640.

The previous prime is 200421034144313. The next prime is 200421034144369. The reversal of 200421034144320 is 23441430124002.

200421034144320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30516136 + ... + 36497624.

It is an arithmetic number, because the mean of its divisors is an integer number (1640842336800).

Almost surely, 2^{200421034144320} is an apocalyptic number.

200421034144320 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 200421034144320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367548683443200).

200421034144320 is an abundant number, since it is smaller than the sum of its proper divisors (534676332742080).

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

200421034144320 is a wasteful number, since it uses less digits than its factorization.

200421034144320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5981706 (or 5981696 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 200421034144320 its reverse (23441430124002), we get a palindrome (223862464268322).

The spelling of 200421034144320 in words is "two hundred trillion, four hundred twenty-one billion, thirty-four million, one hundred forty-four thousand, three hundred twenty".