320343222413 has 4 divisors (see below), whose sum is σ = 320498054460. Its totient is φ = 320188390368.

The previous prime is 320343222401. The next prime is 320343222461. The reversal of 320343222413 is 314222343023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193879060489 + 126464161924 = 440317^2 + 355618^2 .

It is a cyclic number.

It is not a de Polignac number, because 320343222413 - 2²² = 320339028109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320343222313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77412920 + ... + 77417057.

It is an arithmetic number, because the mean of its divisors is an integer number (80124513615).

Almost surely, 2^320343222413 is an apocalyptic number.

It is an amenable number.

320343222413 is a deficient number, since it is larger than the sum of its proper divisors (154832047).

320343222413 is a wasteful number, since it uses less digits than its factorization.

320343222413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154832046.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 320343222413 its reverse (314222343023), we get a palindrome (634565565436).

The spelling of 320343222413 in words is "three hundred twenty billion, three hundred forty-three million, two hundred twenty-two thousand, four hundred thirteen".