321234110043243 has 4 divisors (see below), whose sum is σ = 428312146724328. Its totient is φ = 214156073362160.

The previous prime is 321234110043167. The next prime is 321234110043323. The reversal of 321234110043243 is 342340011432123.

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 321234110043243 - 2¹³ = 321234110035051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321234110043443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53539018340538 + ... + 53539018340543.

It is an arithmetic number, because the mean of its divisors is an integer number (107078036681082).

Almost surely, 2^{321234110043243} is an apocalyptic number.

321234110043243 is a deficient number, since it is larger than the sum of its proper divisors (107078036681085).

321234110043243 is a wasteful number, since it uses less digits than its factorization.

321234110043243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107078036681084.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 321234110043243 its reverse (342340011432123), we get a palindrome (663574121475366).

The spelling of 321234110043243 in words is "three hundred twenty-one trillion, two hundred thirty-four billion, one hundred ten million, forty-three thousand, two hundred forty-three".