203402441220 has 48 divisors (see below), whose sum is σ = 621302004288. Its totient is φ = 49309682560.

The previous prime is 203402441171. The next prime is 203402441227. The reversal of 203402441220 is 22144204302.

It is not an unprimeable number, because it can be changed into a prime (203402441227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154092099 + ... + 154093418.

It is an arithmetic number, because the mean of its divisors is an integer number (12943791756).

Almost surely, 2^203402441220 is an apocalyptic number.

203402441220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203402441220 is an abundant number, since it is smaller than the sum of its proper divisors (417899563068).

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

203402441220 is a wasteful number, since it uses less digits than its factorization.

203402441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308185540 (or 308185538 counting only the distinct ones).

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

Adding to 203402441220 its reverse (22144204302), we get a palindrome (225546645522).

The spelling of 203402441220 in words is "two hundred three billion, four hundred two million, four hundred forty-one thousand, two hundred twenty".