321115096447 has 2 divisors, whose sum is σ = 321115096448. Its totient is φ = 321115096446.

The previous prime is 321115096441. The next prime is 321115096481. The reversal of 321115096447 is 744690511123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321115096447 - 2²⁷ = 320980878719 is a prime.

It is a super-2 number, since 2×321115096447² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321115096441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160557548223 + 160557548224.

It is an arithmetic number, because the mean of its divisors is an integer number (160557548224).

Almost surely, 2^321115096447 is an apocalyptic number.

321115096447 is a deficient number, since it is larger than the sum of its proper divisors (1).

321115096447 is an equidigital number, since it uses as much as digits as its factorization.

321115096447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 321115096447 in words is "three hundred twenty-one billion, one hundred fifteen million, ninety-six thousand, four hundred forty-seven".