321243404342123 has 2 divisors, whose sum is σ = 321243404342124. Its totient is φ = 321243404342122.

The previous prime is 321243404342039. The next prime is 321243404342129.

321243404342123 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 321243404342123 - 2³⁶ = 321174684865387 is a prime.

It is not a weakly prime, because it can be changed into another prime (321243404342129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160621702171061 + 160621702171062.

It is an arithmetic number, because the mean of its divisors is an integer number (160621702171062).

Almost surely, 2^{321243404342123} is an apocalyptic number.

321243404342123 is a deficient number, since it is larger than the sum of its proper divisors (1).

321243404342123 is an equidigital number, since it uses as much as digits as its factorization.

321243404342123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 38.

It can be divided in two parts, 32124340 and 4342123, that added together give a palindrome (36466463).

The spelling of 321243404342123 in words is "three hundred twenty-one trillion, two hundred forty-three billion, four hundred four million, three hundred forty-two thousand, one hundred twenty-three".