321243322342123 has 16 divisors (see below), whose sum is σ = 324835517916000. Its totient is φ = 317677348512000.

The previous prime is 321243322342121. The next prime is 321243322342253. The reversal of 321243322342123 is 321243223342123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321243322342123 - 2¹ = 321243322342121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321243322342121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12541033 + ... + 28280101.

It is an arithmetic number, because the mean of its divisors is an integer number (20302219869750).

Almost surely, 2^{321243322342123} is an apocalyptic number.

321243322342123 is a deficient number, since it is larger than the sum of its proper divisors (3592195573877).

321243322342123 is a wasteful number, since it uses less digits than its factorization.

321243322342123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15739902.

The product of its digits is 248832, while the sum is 37.

Adding to 321243322342123 its reverse (321243223342123), we get a palindrome (642486545684246).

The spelling of 321243322342123 in words is "three hundred twenty-one trillion, two hundred forty-three billion, three hundred twenty-two million, three hundred forty-two thousand, one hundred twenty-three".