331321320323 has 8 divisors (see below), whose sum is σ = 388886800992. Its totient is φ = 276314305536.

The previous prime is 331321320307. The next prime is 331321320329. The reversal of 331321320323 is 323023123133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331321320323 - 2⁴ = 331321320307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331321320292 and 331321320301.

It is not an unprimeable number, because it can be changed into a prime (331321320329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639616190 + ... + 639616707.

It is an arithmetic number, because the mean of its divisors is an integer number (48610850124).

Almost surely, 2^331321320323 is an apocalyptic number.

331321320323 is a deficient number, since it is larger than the sum of its proper divisors (57565480669).

331321320323 is a wasteful number, since it uses less digits than its factorization.

331321320323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279232941.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 331321320323 its reverse (323023123133), we get a palindrome (654344443456).

The spelling of 331321320323 in words is "three hundred thirty-one billion, three hundred twenty-one million, three hundred twenty thousand, three hundred twenty-three".