320243313105 has 24 divisors (see below), whose sum is σ = 572994489600. Its totient is φ = 165286870560.

The previous prime is 320243313101. The next prime is 320243313113. The reversal of 320243313105 is 501313342023.

320243313105 is a `hidden beast` number, since 3 + 2 + 0 + 243 + 313 + 105 = 666.

It is not a de Polignac number, because 320243313105 - 2² = 320243313101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320243313101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114781155 + ... + 114783944.

It is an arithmetic number, because the mean of its divisors is an integer number (23874770400).

Almost surely, 2^320243313105 is an apocalyptic number.

It is an amenable number.

320243313105 is a deficient number, since it is larger than the sum of its proper divisors (252751176495).

320243313105 is a wasteful number, since it uses less digits than its factorization.

320243313105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229565141 (or 229565138 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 320243313105 its reverse (501313342023), we get a palindrome (821556655128).

The spelling of 320243313105 in words is "three hundred twenty billion, two hundred forty-three million, three hundred thirteen thousand, one hundred five".