320023120013 has 4 divisors (see below), whose sum is σ = 320244284640. Its totient is φ = 319801955388.

The previous prime is 320023120007. The next prime is 320023120019. The reversal of 320023120013 is 310021320023.

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 an interprime number because it is at equal distance from previous prime (320023120007) and next prime (320023120019).

It is a cyclic number.

It is not a de Polignac number, because 320023120013 - 2¹² = 320023115917 is a prime.

It is a super-2 number, since 2×320023120013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320023119973 and 320023120000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320023120019) 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, 110580143 + ... + 110583036.

It is an arithmetic number, because the mean of its divisors is an integer number (80061071160).

Almost surely, 2^320023120013 is an apocalyptic number.

It is an amenable number.

320023120013 is a deficient number, since it is larger than the sum of its proper divisors (221164627).

320023120013 is a wasteful number, since it uses less digits than its factorization.

320023120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221164626.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 320023120013 its reverse (310021320023), we get a palindrome (630044440036).

The spelling of 320023120013 in words is "three hundred twenty billion, twenty-three million, one hundred twenty thousand, thirteen".