201321313 has 4 divisors (see below), whose sum is σ = 206003248. Its totient is φ = 196639380.

The previous prime is 201321301. The next prime is 201321317. The reversal of 201321313 is 313123102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201321313 - 2²¹ = 199224161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201321317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340903 + ... + 2340988.

It is an arithmetic number, because the mean of its divisors is an integer number (51500812).

Almost surely, 2^201321313 is an apocalyptic number.

It is an amenable number.

201321313 is a deficient number, since it is larger than the sum of its proper divisors (4681935).

201321313 is an equidigital number, since it uses as much as digits as its factorization.

201321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681934.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 201321313 is about 14188.7741894781. The cubic root of 201321313 is about 586.0885694733.

Adding to 201321313 its reverse (313123102), we get a palindrome (514444415).

The spelling of 201321313 in words is "two hundred one million, three hundred twenty-one thousand, three hundred thirteen".