321340323120331 has 2 divisors, whose sum is σ = 321340323120332. Its totient is φ = 321340323120330.

The previous prime is 321340323120287. The next prime is 321340323120371. The reversal of 321340323120331 is 133021323043123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321340323120331 - 2²⁵ = 321340289565899 is a prime.

It is a super-2 number, since 2×321340323120331² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321340323120293 and 321340323120302.

It is not a weakly prime, because it can be changed into another prime (321340323120371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160670161560165 + 160670161560166.

It is an arithmetic number, because the mean of its divisors is an integer number (160670161560166).

Almost surely, 2^{321340323120331} is an apocalyptic number.

321340323120331 is a deficient number, since it is larger than the sum of its proper divisors (1).

321340323120331 is an equidigital number, since it uses as much as digits as its factorization.

321340323120331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 321340323120331 its reverse (133021323043123), we get a palindrome (454361646163454).

The spelling of 321340323120331 in words is "three hundred twenty-one trillion, three hundred forty billion, three hundred twenty-three million, one hundred twenty thousand, three hundred thirty-one".