320303213131321 has 8 divisors (see below), whose sum is σ = 387593804125440. Its totient is φ = 258395869416768.

The previous prime is 320303213131271. The next prime is 320303213131333. The reversal of 320303213131321 is 123131312303023.

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 320303213131321 - 2²⁷ = 320303078913593 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 320303213131321.

It is not an unprimeable number, because it can be changed into a prime (320303213131021) 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, 1345811819761 + ... + 1345811819998.

It is an arithmetic number, because the mean of its divisors is an integer number (48449225515680).

Almost surely, 2^{320303213131321} is an apocalyptic number.

It is an amenable number.

320303213131321 is a deficient number, since it is larger than the sum of its proper divisors (67290590994119).

320303213131321 is a wasteful number, since it uses less digits than its factorization.

320303213131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691623639783.

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

Adding to 320303213131321 its reverse (123131312303023), we get a palindrome (443434525434344).

The spelling of 320303213131321 in words is "three hundred twenty trillion, three hundred three billion, two hundred thirteen million, one hundred thirty-one thousand, three hundred twenty-one".