203223202021 has 8 divisors (see below), whose sum is σ = 232405622144. Its totient is φ = 174078415440.

The previous prime is 203223201997. The next prime is 203223202027. The reversal of 203223202021 is 120202322302.

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 203223202021 - 2⁵ = 203223201989 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 203223202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203223202027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9396810 + ... + 9418411.

It is an arithmetic number, because the mean of its divisors is an integer number (29050702768).

Almost surely, 2^203223202021 is an apocalyptic number.

It is an amenable number.

203223202021 is a deficient number, since it is larger than the sum of its proper divisors (29182420123).

203223202021 is a wasteful number, since it uses less digits than its factorization.

203223202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18816771.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 203223202021 its reverse (120202322302), we get a palindrome (323425524323).

The spelling of 203223202021 in words is "two hundred three billion, two hundred twenty-three million, two hundred two thousand, twenty-one".