203221231232 has 64 divisors (see below), whose sum is σ = 412212477600. Its totient is φ = 99768136704.

The previous prime is 203221231229. The next prime is 203221231237. The reversal of 203221231232 is 232132122302.

203221231232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 203221231198 and 203221231207.

It is not an unprimeable number, because it can be changed into a prime (203221231237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6426083 + ... + 6457629.

Almost surely, 2^203221231232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203221231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206106238800).

203221231232 is an abundant number, since it is smaller than the sum of its proper divisors (208991246368).

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

203221231232 is an equidigital number, since it uses as much as digits as its factorization.

203221231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32473 (or 32461 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 203221231232 its reverse (232132122302), we get a palindrome (435353353534).

The spelling of 203221231232 in words is "two hundred three billion, two hundred twenty-one million, two hundred thirty-one thousand, two hundred thirty-two".