320212333013 has 4 divisors (see below), whose sum is σ = 339048352620. Its totient is φ = 301376313408.

The previous prime is 320212333003. The next prime is 320212333037. The reversal of 320212333013 is 310333212023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310333212023 = 199 ⋅1559463377.

It can be written as a sum of positive squares in 2 ways, for example, as 224166265444 + 96046067569 = 473462^2 + 309913^2 .

It is a cyclic number.

It is not a de Polignac number, because 320212333013 - 2⁴ = 320212332997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320212333013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320212333003) 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, 9418009778 + ... + 9418009811.

It is an arithmetic number, because the mean of its divisors is an integer number (84762088155).

Almost surely, 2^320212333013 is an apocalyptic number.

It is an amenable number.

320212333013 is a deficient number, since it is larger than the sum of its proper divisors (18836019607).

320212333013 is a wasteful number, since it uses less digits than its factorization.

320212333013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18836019606.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 320212333013 its reverse (310333212023), we get a palindrome (630545545036).

The spelling of 320212333013 in words is "three hundred twenty billion, two hundred twelve million, three hundred thirty-three thousand, thirteen".