200131321 has 16 divisors (see below), whose sum is σ = 220026240. Its totient is φ = 181992720.

The previous prime is 200131289. The next prime is 200131387. The reversal of 200131321 is 123131002.

It is not a de Polignac number, because 200131321 - 2⁵ = 200131289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200131391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155346 + ... + 156628.

It is an arithmetic number, because the mean of its divisors is an integer number (13751640).

Almost surely, 2^200131321 is an apocalyptic number.

It is an amenable number.

200131321 is a deficient number, since it is larger than the sum of its proper divisors (19894919).

200131321 is an equidigital number, since it uses as much as digits as its factorization.

200131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 200131321 is about 14146.7777603241. Note that the first 4 decimals coincide. The cubic root of 200131321 is about 584.9315146165.

Adding to 200131321 its reverse (123131002), we get a palindrome (323262323).

The spelling of 200131321 in words is "two hundred million, one hundred thirty-one thousand, three hundred twenty-one".