321123343 has 4 divisors (see below), whose sum is σ = 327182328. Its totient is φ = 315064360.

The previous prime is 321123307. The next prime is 321123349. The reversal of 321123343 is 343321123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343321123 = 79 ⋅4345837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321123343 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 (321123349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3029413 + ... + 3029518.

It is an arithmetic number, because the mean of its divisors is an integer number (81795582).

Almost surely, 2^321123343 is an apocalyptic number.

321123343 is a deficient number, since it is larger than the sum of its proper divisors (6058985).

321123343 is an equidigital number, since it uses as much as digits as its factorization.

321123343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6058984.

The product of its digits is 1296, while the sum is 22.

The square root of 321123343 is about 17919.9147040381. The cubic root of 321123343 is about 684.7898145692.

Adding to 321123343 its reverse (343321123), we get a palindrome (664444466).

The spelling of 321123343 in words is "three hundred twenty-one million, one hundred twenty-three thousand, three hundred forty-three".