320201220213313 has 4 divisors (see below), whose sum is σ = 321476922286128. Its totient is φ = 318925518140500.

The previous prime is 320201220213307. The next prime is 320201220213359. The reversal of 320201220213313 is 313312022102023.

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 a de Polignac number, because none of the positive numbers 2^k-320201220213313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320201220213913) 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, 637851036031 + ... + 637851036532.

It is an arithmetic number, because the mean of its divisors is an integer number (80369230571532).

Almost surely, 2^{320201220213313} is an apocalyptic number.

It is an amenable number.

320201220213313 is a deficient number, since it is larger than the sum of its proper divisors (1275702072815).

320201220213313 is a wasteful number, since it uses less digits than its factorization.

320201220213313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275702072814.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 320201220213313 its reverse (313312022102023), we get a palindrome (633513242315336).

The spelling of 320201220213313 in words is "three hundred twenty trillion, two hundred one billion, two hundred twenty million, two hundred thirteen thousand, three hundred thirteen".