203321311120 has 40 divisors (see below), whose sum is σ = 479197706616. Its totient is φ = 80214432768.

The previous prime is 203321311111. The next prime is 203321311187. The reversal of 203321311120 is 21113123302.

It can be written as a sum of positive squares in 4 ways, for example, as 13856114944 + 189465196176 = 117712^2 + 435276^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 17401807 + ... + 17413486.

Almost surely, 2^203321311120 is an apocalyptic number.

203321311120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203321311120 is an abundant number, since it is smaller than the sum of its proper divisors (275876395496).

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

203321311120 is a wasteful number, since it uses less digits than its factorization.

203321311120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34815379 (or 34815373 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 203321311120 its reverse (21113123302), we get a palindrome (224434434422).

The spelling of 203321311120 in words is "two hundred three billion, three hundred twenty-one million, three hundred eleven thousand, one hundred twenty".