203112122131200 has 216 divisors, whose sum is σ = 670344176907328. Its totient is φ = 54160658288640.

The previous prime is 203112122131063. The next prime is 203112122131229. The reversal of 203112122131200 is 2131221211302.

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 23 ways as a sum of consecutive naturals, for example, 422217207 + ... + 422697993.

Almost surely, 2^{203112122131200} is an apocalyptic number.

203112122131200 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 203112122131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335172088453664).

203112122131200 is an abundant number, since it is smaller than the sum of its proper divisors (467232054776128).

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

203112122131200 is a wasteful number, since it uses less digits than its factorization.

203112122131200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502819 (or 502800 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 203112122131200 its reverse (2131221211302), we get a palindrome (205243343342502).

The spelling of 203112122131200 in words is "two hundred three trillion, one hundred twelve billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred".