203242444300 has 144 divisors (see below), whose sum is σ = 543762072000. Its totient is φ = 64346480640.

The previous prime is 203242444271. The next prime is 203242444313. The reversal of 203242444300 is 3444242302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 469576 + ... + 791824.

It is an arithmetic number, because the mean of its divisors is an integer number (3776125500).

Almost surely, 2^203242444300 is an apocalyptic number.

203242444300 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 203242444300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271881036000).

203242444300 is an abundant number, since it is smaller than the sum of its proper divisors (340519627700).

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

203242444300 is a wasteful number, since it uses less digits than its factorization.

203242444300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322340 (or 322333 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 203242444300 its reverse (3444242302), we get a palindrome (206686686602).

The spelling of 203242444300 in words is "two hundred three billion, two hundred forty-two million, four hundred forty-four thousand, three hundred".