203321013220 has 48 divisors (see below), whose sum is σ = 463438983168. Its totient is φ = 74481240960.

The previous prime is 203321013211. The next prime is 203321013227. The reversal of 203321013220 is 22310123302.

It is not an unprimeable number, because it can be changed into a prime (203321013227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3045736 + ... + 3111775.

It is an arithmetic number, because the mean of its divisors is an integer number (9654978816).

Almost surely, 2^203321013220 is an apocalyptic number.

203321013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203321013220 is an abundant number, since it is smaller than the sum of its proper divisors (260117969948).

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

203321013220 is a wasteful number, since it uses less digits than its factorization.

203321013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6157660 (or 6157658 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203321013220 its reverse (22310123302), we get a palindrome (225631136522).

The spelling of 203321013220 in words is "two hundred three billion, three hundred twenty-one million, thirteen thousand, two hundred twenty".