201043421304 has 128 divisors (see below), whose sum is σ = 550526976000. Its totient is φ = 60675350400.

The previous prime is 201043421303. The next prime is 201043421309. The reversal of 201043421304 is 403124340102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201043421303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127970839 + ... + 127972409.

It is an arithmetic number, because the mean of its divisors is an integer number (4300992000).

Almost surely, 2^201043421304 is an apocalyptic number.

201043421304 is a gapful number since it is divisible by the number (24) 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 201043421304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275263488000).

201043421304 is an abundant number, since it is smaller than the sum of its proper divisors (349483554696).

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

201043421304 is a wasteful number, since it uses less digits than its factorization.

201043421304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 201043421304 its reverse (403124340102), we get a palindrome (604167761406).

The spelling of 201043421304 in words is "two hundred one billion, forty-three million, four hundred twenty-one thousand, three hundred four".