203220230321 has 8 divisors (see below), whose sum is σ = 210235775400. Its totient is φ = 196205215360.

The previous prime is 203220230299. The next prime is 203220230333. The reversal of 203220230321 is 123032022302.

203220230321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 45182178721 + 158038051600 = 212561^2 + 397540^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203220230321 - 2³⁰ = 202146488497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203220230293 and 203220230302.

It is not an unprimeable number, because it can be changed into a prime (203220236321) 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, 746261 + ... + 981501.

It is an arithmetic number, because the mean of its divisors is an integer number (26279471925).

Almost surely, 2^203220230321 is an apocalyptic number.

It is an amenable number.

203220230321 is a deficient number, since it is larger than the sum of its proper divisors (7015545079).

203220230321 is a wasteful number, since it uses less digits than its factorization.

203220230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265059.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203220230321 its reverse (123032022302), we get a palindrome (326252252623).

The spelling of 203220230321 in words is "two hundred three billion, two hundred twenty million, two hundred thirty thousand, three hundred twenty-one".