200143321 has 16 divisors (see below), whose sum is σ = 242242560. Its totient is φ = 161531280.

The previous prime is 200143267. The next prime is 200143327. The reversal of 200143321 is 123341002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200143321 - 2¹¹ = 200141273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200143295 and 200143304.

It is not an unprimeable number, because it can be changed into a prime (200143327) 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 15 ways as a sum of consecutive naturals, for example, 17706 + ... + 26716.

It is an arithmetic number, because the mean of its divisors is an integer number (15140160).

Almost surely, 2^200143321 is an apocalyptic number.

It is an amenable number.

200143321 is a deficient number, since it is larger than the sum of its proper divisors (42099239).

200143321 is a wasteful number, since it uses less digits than its factorization.

200143321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 200143321 is about 14147.2018788169. The cubic root of 200143321 is about 584.9432053368.

Adding to 200143321 its reverse (123341002), we get a palindrome (323484323).

The spelling of 200143321 in words is "two hundred million, one hundred forty-three thousand, three hundred twenty-one".