321115096481 has 2 divisors, whose sum is σ = 321115096482. Its totient is φ = 321115096480.

The previous prime is 321115096447. The next prime is 321115096483. The reversal of 321115096481 is 184690511123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314851165456 + 6263931025 = 561116^2 + 79145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321115096481 is a prime.

It is a super-2 number, since 2×321115096481² (a number of 24 digits) contains 22 as substring.

Together with 321115096483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321115096483) 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 as a sum of consecutive naturals, namely, 160557548240 + 160557548241.

It is an arithmetic number, because the mean of its divisors is an integer number (160557548241).

Almost surely, 2^321115096481 is an apocalyptic number.

It is an amenable number.

321115096481 is a deficient number, since it is larger than the sum of its proper divisors (1).

321115096481 is an equidigital number, since it uses as much as digits as its factorization.

321115096481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 321115096481 in words is "three hundred twenty-one billion, one hundred fifteen million, ninety-six thousand, four hundred eighty-one".