123321344121321 has 8 divisors (see below), whose sum is σ = 164429564001024. Its totient is φ = 82213676827920.

The previous prime is 123321344121319. The next prime is 123321344121331. The reversal of 123321344121321 is 123121443123321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123321344121321 - 2¹ = 123321344121319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123321344121331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137625561 + ... + 138518726.

It is an arithmetic number, because the mean of its divisors is an integer number (20553695500128).

Almost surely, 2^{123321344121321} is an apocalyptic number.

It is an amenable number.

123321344121321 is a deficient number, since it is larger than the sum of its proper divisors (41108219879703).

123321344121321 is a wasteful number, since it uses less digits than its factorization.

123321344121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276293151.

The product of its digits is 20736, while the sum is 33.

Adding to 123321344121321 its reverse (123121443123321), we get a palindrome (246442787244642).

The spelling of 123321344121321 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, three hundred forty-four million, one hundred twenty-one thousand, three hundred twenty-one".