200521313 has 4 divisors (see below), whose sum is σ = 204304788. Its totient is φ = 196737840.

The previous prime is 200521303. The next prime is 200521339. The reversal of 200521313 is 313125002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313125002 = 2 ⋅156562501.

It can be written as a sum of positive squares in 2 ways, for example, as 82755409 + 117765904 = 9097^2 + 10852^2 .

It is a cyclic number.

It is not a de Polignac number, because 200521313 - 2¹² = 200517217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200521291 and 200521300.

It is not an unprimeable number, because it can be changed into a prime (200521303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891658 + ... + 1891763.

It is an arithmetic number, because the mean of its divisors is an integer number (51076197).

Almost surely, 2^200521313 is an apocalyptic number.

It is an amenable number.

200521313 is a deficient number, since it is larger than the sum of its proper divisors (3783475).

200521313 is an equidigital number, since it uses as much as digits as its factorization.

200521313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783474.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 200521313 is about 14160.5548267008. The cubic root of 200521313 is about 585.3112162937.

Adding to 200521313 its reverse (313125002), we get a palindrome (513646315).

The spelling of 200521313 in words is "two hundred million, five hundred twenty-one thousand, three hundred thirteen".