320123013 has 16 divisors (see below), whose sum is σ = 488073216. Its totient is φ = 182827440.

The previous prime is 320122981. The next prime is 320123017. The reversal of 320123013 is 310321023.

It is not a de Polignac number, because 320123013 - 2⁵ = 320122981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320122983 and 320123001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320123017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54120 + ... + 59742.

It is an arithmetic number, because the mean of its divisors is an integer number (30504576).

Almost surely, 2^320123013 is an apocalyptic number.

It is an amenable number.

320123013 is a deficient number, since it is larger than the sum of its proper divisors (167950203).

320123013 is a wasteful number, since it uses less digits than its factorization.

320123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 320123013 is about 17891.9818075025. The cubic root of 320123013 is about 684.0780129719.

Adding to 320123013 its reverse (310321023), we get a palindrome (630444036).

The spelling of 320123013 in words is "three hundred twenty million, one hundred twenty-three thousand, thirteen".