203103413440 has 28 divisors (see below), whose sum is σ = 483640004016. Its totient is φ = 81241365248.

The previous prime is 203103413423. The next prime is 203103413519. The reversal of 203103413440 is 44314301302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317348764 + ... + 317349403.

Almost surely, 2^203103413440 is an apocalyptic number.

203103413440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203103413440 is an abundant number, since it is smaller than the sum of its proper divisors (280536590576).

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

203103413440 is an equidigital number, since it uses as much as digits as its factorization.

203103413440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634698184 (or 634698174 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203103413440 its reverse (44314301302), we get a palindrome (247417714742).

The spelling of 203103413440 in words is "two hundred three billion, one hundred three million, four hundred thirteen thousand, four hundred forty".