320110013 has 4 divisors (see below), whose sum is σ = 320155740. Its totient is φ = 320064288.

The previous prime is 320110009. The next prime is 320110019. The reversal of 320110013 is 310011023.

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 154678969 + 165431044 = 12437^2 + 12862^2 .

It is a cyclic number.

It is not a de Polignac number, because 320110013 - 2² = 320110009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320109976 and 320110003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320110019) 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, 9920 + ... + 27177.

It is an arithmetic number, because the mean of its divisors is an integer number (80038935).

Almost surely, 2^320110013 is an apocalyptic number.

It is an amenable number.

320110013 is a deficient number, since it is larger than the sum of its proper divisors (45727).

320110013 is an equidigital number, since it uses as much as digits as its factorization.

320110013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45726.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 320110013 is about 17891.6185125885. The cubic root of 320110013 is about 684.0687528499.

Adding to 320110013 its reverse (310011023), we get a palindrome (630121036).

The spelling of 320110013 in words is "three hundred twenty million, one hundred ten thousand, thirteen".