200423031221 has 8 divisors (see below), whose sum is σ = 230217609600. Its totient is φ = 170919132048.

The previous prime is 200423031209. The next prime is 200423031227. The reversal of 200423031221 is 122130324002.

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

It is not a de Polignac number, because 200423031221 - 2¹⁴ = 200423014837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200423031193 and 200423031202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200423031227) 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, 72668321 + ... + 72671078.

It is an arithmetic number, because the mean of its divisors is an integer number (28777201200).

Almost surely, 2^200423031221 is an apocalyptic number.

It is an amenable number.

200423031221 is a deficient number, since it is larger than the sum of its proper divisors (29794578379).

200423031221 is a wasteful number, since it uses less digits than its factorization.

200423031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145339603.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 200423031221 its reverse (122130324002), we get a palindrome (322553355223).

The spelling of 200423031221 in words is "two hundred billion, four hundred twenty-three million, thirty-one thousand, two hundred twenty-one".