203103001100 has 72 divisors (see below), whose sum is σ = 454589841888. Its totient is φ = 78705907200.

The previous prime is 203103001081. The next prime is 203103001117. The reversal of 203103001100 is 1100301302.

203103001100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 744305 + ... + 979895.

It is an arithmetic number, because the mean of its divisors is an integer number (6313747804).

Almost surely, 2^203103001100 is an apocalyptic number.

203103001100 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 203103001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227294920944).

203103001100 is an abundant number, since it is smaller than the sum of its proper divisors (251486840788).

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

203103001100 is a wasteful number, since it uses less digits than its factorization.

203103001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235875 (or 235868 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 203103001100 its reverse (1100301302), we get a palindrome (204203302402).

The spelling of 203103001100 in words is "two hundred three billion, one hundred three million, one thousand, one hundred".