203321121032 has 16 divisors (see below), whose sum is σ = 381258632700. Its totient is φ = 101652152320.

The previous prime is 203321121013. The next prime is 203321121067. The reversal of 203321121032 is 230121123302.

It can be written as a sum of positive squares in 2 ways, for example, as 157445478436 + 45875642596 = 396794^2 + 214186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203321120995 and 203321121013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947657 + ... + 1142232.

Almost surely, 2^203321121032 is an apocalyptic number.

It is an amenable number.

203321121032 is a deficient number, since it is larger than the sum of its proper divisors (177937511668).

203321121032 is a wasteful number, since it uses less digits than its factorization.

203321121032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102056 (or 2102052 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203321121032 its reverse (230121123302), we get a palindrome (433442244334).

The spelling of 203321121032 in words is "two hundred three billion, three hundred twenty-one million, one hundred twenty-one thousand, thirty-two".