321440410420323 has 16 divisors (see below), whose sum is σ = 435853197440640. Its totient is φ = 210660645065024.

The previous prime is 321440410420249. The next prime is 321440410420397. The reversal of 321440410420323 is 323024014044123.

It is an interprime number because it is at equal distance from previous prime (321440410420249) and next prime (321440410420397).

It is a cyclic number.

It is not a de Polignac number, because 321440410420323 - 2⁸ = 321440410420067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321440410420223) 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 in 15 ways as a sum of consecutive naturals, for example, 40901815 + ... + 48123167.

It is an arithmetic number, because the mean of its divisors is an integer number (27240824840040).

Almost surely, 2^{321440410420323} is an apocalyptic number.

321440410420323 is a deficient number, since it is larger than the sum of its proper divisors (114412787020317).

321440410420323 is a wasteful number, since it uses less digits than its factorization.

321440410420323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472898.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 321440410420323 its reverse (323024014044123), we get a palindrome (644464424464446).

The spelling of 321440410420323 in words is "three hundred twenty-one trillion, four hundred forty billion, four hundred ten million, four hundred twenty thousand, three hundred twenty-three".