320013003043 has 4 divisors (see below), whose sum is σ = 320067646600. Its totient is φ = 319958359488.

The previous prime is 320013003001. The next prime is 320013003047. The reversal of 320013003043 is 340300310023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340300310023 = 71 ⋅4792962113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320013003043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320013003043.

It is not an unprimeable number, because it can be changed into a prime (320013003047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27312993 + ... + 27324706.

It is an arithmetic number, because the mean of its divisors is an integer number (80016911650).

Almost surely, 2^320013003043 is an apocalyptic number.

320013003043 is a deficient number, since it is larger than the sum of its proper divisors (54643557).

320013003043 is an equidigital number, since it uses as much as digits as its factorization.

320013003043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54643556.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 320013003043 its reverse (340300310023), we get a palindrome (660313313066).

The spelling of 320013003043 in words is "three hundred twenty billion, thirteen million, three thousand, forty-three".