203221323132 has 12 divisors (see below), whose sum is σ = 474183087336. Its totient is φ = 67740441040.

The previous prime is 203221323119. The next prime is 203221323187. The reversal of 203221323132 is 231323122302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8467555119 + ... + 8467555142.

It is an arithmetic number, because the mean of its divisors is an integer number (39515257278).

Almost surely, 2^203221323132 is an apocalyptic number.

It is an amenable number.

203221323132 is an abundant number, since it is smaller than the sum of its proper divisors (270961764204).

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

203221323132 is a wasteful number, since it uses less digits than its factorization.

203221323132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16935110268 (or 16935110266 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 203221323132 its reverse (231323122302), we get a palindrome (434544445434).

The spelling of 203221323132 in words is "two hundred three billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred thirty-two".