320320303243 has 32 divisors (see below), whose sum is σ = 348817674240. Its totient is φ = 292957271040.

The previous prime is 320320303189. The next prime is 320320303253. The reversal of 320320303243 is 342303023023.

It is a cyclic number.

It is not a de Polignac number, because 320320303243 - 2¹⁷ = 320320172171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320320303253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314347188 + ... + 314348206.

It is an arithmetic number, because the mean of its divisors is an integer number (10900552320).

Almost surely, 2^320320303243 is an apocalyptic number.

320320303243 is a deficient number, since it is larger than the sum of its proper divisors (28497370997).

320320303243 is a wasteful number, since it uses less digits than its factorization.

320320303243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427.

The product of its (nonzero) digits is 7776, while the sum is 25.

Adding to 320320303243 its reverse (342303023023), we get a palindrome (662623326266).

The spelling of 320320303243 in words is "three hundred twenty billion, three hundred twenty million, three hundred three thousand, two hundred forty-three".