203244021300 has 144 divisors (see below), whose sum is σ = 590589074880. Its totient is φ = 53965148160.

The previous prime is 203244021293. The next prime is 203244021319. The reversal of 203244021300 is 3120442302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118924846 + ... + 118926554.

It is an arithmetic number, because the mean of its divisors is an integer number (4101313020).

Almost surely, 2^203244021300 is an apocalyptic number.

203244021300 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 203244021300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295294537440).

203244021300 is an abundant number, since it is smaller than the sum of its proper divisors (387345053580).

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

203244021300 is a wasteful number, since it uses less digits than its factorization.

203244021300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202 (or 3195 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 203244021300 its reverse (3120442302), we get a palindrome (206364463602).

The spelling of 203244021300 in words is "two hundred three billion, two hundred forty-four million, twenty-one thousand, three hundred".