321243412004311 has 4 divisors (see below), whose sum is σ = 321633744218992. Its totient is φ = 320853079789632.

The previous prime is 321243412004269. The next prime is 321243412004321. The reversal of 321243412004311 is 113400214342123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321243412004311 - 2⁹ = 321243412003799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321243412004321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195166106106 + ... + 195166107751.

It is an arithmetic number, because the mean of its divisors is an integer number (80408436054748).

Almost surely, 2^{321243412004311} is an apocalyptic number.

321243412004311 is a deficient number, since it is larger than the sum of its proper divisors (390332214681).

321243412004311 is an equidigital number, since it uses as much as digits as its factorization.

321243412004311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390332214680.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 321243412004311 its reverse (113400214342123), we get a palindrome (434643626346434).

The spelling of 321243412004311 in words is "three hundred twenty-one trillion, two hundred forty-three billion, four hundred twelve million, four thousand, three hundred eleven".