203130210100 has 18 divisors (see below), whose sum is σ = 440792556134. Its totient is φ = 81252084000.

The previous prime is 203130210013. The next prime is 203130210119. The reversal of 203130210100 is 1012031302.

It can be written as a sum of positive squares in 3 ways, for example, as 2773707556 + 200356502544 = 52666^2 + 447612^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1015650951 + ... + 1015651150.

Almost surely, 2^203130210100 is an apocalyptic number.

203130210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130210100 is an abundant number, since it is smaller than the sum of its proper divisors (237662346034).

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

203130210100 is a wasteful number, since it uses less digits than its factorization.

203130210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031302115 (or 2031302108 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 203130210100 its reverse (1012031302), we get a palindrome (204142241402).

It can be divided in two parts, 2031302 and 10100, that added together give a palindrome (2041402).

The spelling of 203130210100 in words is "two hundred three billion, one hundred thirty million, two hundred ten thousand, one hundred".