321312311303 has 8 divisors (see below), whose sum is σ = 325724372688. Its totient is φ = 316900534464.

The previous prime is 321312311239. The next prime is 321312311323. The reversal of 321312311303 is 303113213123.

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 321312311303 - 2⁶ = 321312311239 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 (321312311323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3275576 + ... + 3372242.

It is an arithmetic number, because the mean of its divisors is an integer number (40715546586).

Almost surely, 2^321312311303 is an apocalyptic number.

321312311303 is a deficient number, since it is larger than the sum of its proper divisors (4412061385).

321312311303 is an equidigital number, since it uses as much as digits as its factorization.

321312311303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142273.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 321312311303 its reverse (303113213123), we get a palindrome (624425524426).

The spelling of 321312311303 in words is "three hundred twenty-one billion, three hundred twelve million, three hundred eleven thousand, three hundred three".