331320302311321 has 8 divisors (see below), whose sum is σ = 332134418574080. Its totient is φ = 330507068562288.

The previous prime is 331320302311309. The next prime is 331320302311331. The reversal of 331320302311321 is 123113203023133.

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 331320302311321 - 2¹³ = 331320302303129 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 331320302311321.

It is not an unprimeable number, because it can be changed into a prime (331320302311331) 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, 219876651 + ... + 221378368.

It is an arithmetic number, because the mean of its divisors is an integer number (41516802321760).

Almost surely, 2^{331320302311321} is an apocalyptic number.

It is an amenable number.

331320302311321 is a deficient number, since it is larger than the sum of its proper divisors (814116262759).

331320302311321 is a wasteful number, since it uses less digits than its factorization.

331320302311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441256863.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 331320302311321 its reverse (123113203023133), we get a palindrome (454433505334454).

The spelling of 331320302311321 in words is "three hundred thirty-one trillion, three hundred twenty billion, three hundred two million, three hundred eleven thousand, three hundred twenty-one".