203424421200 has 1080 divisors, whose sum is σ = 895922094816. Its totient is φ = 38997504000.

The previous prime is 203424421183. The next prime is 203424421201. The reversal of 203424421200 is 2124424302.

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 (203424421201) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 109308270 + ... + 109310130.

Almost surely, 2^203424421200 is an apocalyptic number.

203424421200 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 203424421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447961047408).

203424421200 is an abundant number, since it is smaller than the sum of its proper divisors (692497673616).

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

203424421200 is a wasteful number, since it uses less digits than its factorization.

203424421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1902 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 203424421200 its reverse (2124424302), we get a palindrome (205548845502).

The spelling of 203424421200 in words is "two hundred three billion, four hundred twenty-four million, four hundred twenty-one thousand, two hundred".