203103123201320 has 32 divisors (see below), whose sum is σ = 458943323478120. Its totient is φ = 80892574387200.

The previous prime is 203103123201281. The next prime is 203103123201331. The reversal of 203103123201320 is 23102321301302.

It can be written as a sum of positive squares in 4 ways, for example, as 150597418850596 + 52505704350724 = 12271814^2 + 7246082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10896080981 + ... + 10896099620.

Almost surely, 2^{203103123201320} is an apocalyptic number.

203103123201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203103123201320 is an abundant number, since it is smaller than the sum of its proper divisors (255840200276800).

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

203103123201320 is a wasteful number, since it uses less digits than its factorization.

203103123201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21792180845 (or 21792180841 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203103123201320 its reverse (23102321301302), we get a palindrome (226205444502622).

The spelling of 203103123201320 in words is "two hundred three trillion, one hundred three billion, one hundred twenty-three million, two hundred one thousand, three hundred twenty".