320323023311 has 4 divisors (see below), whose sum is σ = 339165554112. Its totient is φ = 301480492512.

The previous prime is 320323023271. The next prime is 320323023323. The reversal of 320323023311 is 113320323023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113320323023 = 92233 ⋅1228631.

It is a cyclic number.

It is not a de Polignac number, because 320323023311 - 2¹⁰ = 320323022287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320323023211) 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, 9421265375 + ... + 9421265408.

It is an arithmetic number, because the mean of its divisors is an integer number (84791388528).

Almost surely, 2^320323023311 is an apocalyptic number.

320323023311 is a deficient number, since it is larger than the sum of its proper divisors (18842530801).

320323023311 is a wasteful number, since it uses less digits than its factorization.

320323023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18842530800.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 320323023311 its reverse (113320323023), we get a palindrome (433643346334).

The spelling of 320323023311 in words is "three hundred twenty billion, three hundred twenty-three million, twenty-three thousand, three hundred eleven".