203230210400 has 216 divisors, whose sum is σ = 581206081680. Its totient is φ = 67976294400.

The previous prime is 203230210399. The next prime is 203230210433. The reversal of 203230210400 is 4012032302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9402806 + ... + 9424394.

Almost surely, 2^203230210400 is an apocalyptic number.

203230210400 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 203230210400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290603040840).

203230210400 is an abundant number, since it is smaller than the sum of its proper divisors (377975871280).

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

203230210400 is a wasteful number, since it uses less digits than its factorization.

203230210400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21698 (or 21644 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 203230210400 its reverse (4012032302), we get a palindrome (207242242702).

The spelling of 203230210400 in words is "two hundred three billion, two hundred thirty million, two hundred ten thousand, four hundred".