321134220343 has 4 divisors (see below), whose sum is σ = 321139050048. Its totient is φ = 321129390640.

The previous prime is 321134220331. The next prime is 321134220347. The reversal of 321134220343 is 343022431123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343022431123 = 61 ⋅5623318543.

It is a cyclic number.

It is not a de Polignac number, because 321134220343 - 2³³ = 312544285751 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 (321134220347) 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, 2313703 + ... + 2448568.

It is an arithmetic number, because the mean of its divisors is an integer number (80284762512).

Almost surely, 2^321134220343 is an apocalyptic number.

321134220343 is a deficient number, since it is larger than the sum of its proper divisors (4829705).

321134220343 is an equidigital number, since it uses as much as digits as its factorization.

321134220343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829704.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 321134220343 its reverse (343022431123), we get a palindrome (664156651466).

The spelling of 321134220343 in words is "three hundred twenty-one billion, one hundred thirty-four million, two hundred twenty thousand, three hundred forty-three".