203211322203 has 16 divisors (see below), whose sum is σ = 275054124800. Its totient is φ = 133422274656.

The previous prime is 203211322169. The next prime is 203211322219. The reversal of 203211322203 is 302223112302.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-203211322203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203211322203.

It is not an unprimeable number, because it can be changed into a prime (203211322273) 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, 803226 + ... + 1025472.

It is an arithmetic number, because the mean of its divisors is an integer number (17190882800).

Almost surely, 2^203211322203 is an apocalyptic number.

203211322203 is a deficient number, since it is larger than the sum of its proper divisors (71842802597).

203211322203 is a wasteful number, since it uses less digits than its factorization.

203211322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226866.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203211322203 its reverse (302223112302), we get a palindrome (505434434505).

The spelling of 203211322203 in words is "two hundred three billion, two hundred eleven million, three hundred twenty-two thousand, two hundred three".