203113100200 has 24 divisors (see below), whose sum is σ = 472237958430. Its totient is φ = 81245240000.

The previous prime is 203113100189. The next prime is 203113100231. The reversal of 203113100200 is 2001311302.

It can be written as a sum of positive squares in 3 ways, for example, as 116962632004 + 86150468196 = 341998^2 + 293514^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 507782551 + ... + 507782950.

Almost surely, 2^203113100200 is an apocalyptic number.

203113100200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203113100200 is an abundant number, since it is smaller than the sum of its proper divisors (269124858230).

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

203113100200 is a wasteful number, since it uses less digits than its factorization.

203113100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015565517 (or 1015565508 counting only the distinct ones).

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

Adding to 203113100200 its reverse (2001311302), we get a palindrome (205114411502).

The spelling of 203113100200 in words is "two hundred three billion, one hundred thirteen million, one hundred thousand, two hundred".