321143433431343 has 8 divisors (see below), whose sum is σ = 428191712314800. Its totient is φ = 214095388417728.

The previous prime is 321143433431237. The next prime is 321143433431363. The reversal of 321143433431343 is 343134334341123.

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

It is not a de Polignac number, because 321143433431343 - 2¹⁸ = 321143433169199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321143433431295 and 321143433431304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321143433431363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55237908 + ... + 60774281.

It is an arithmetic number, because the mean of its divisors is an integer number (53523964039350).

Almost surely, 2^{321143433431343} is an apocalyptic number.

321143433431343 is a deficient number, since it is larger than the sum of its proper divisors (107048278883457).

321143433431343 is a wasteful number, since it uses less digits than its factorization.

321143433431343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116934921.

The product of its digits is 1119744, while the sum is 42.

Adding to 321143433431343 its reverse (343134334341123), we get a palindrome (664277767772466).

The spelling of 321143433431343 in words is "three hundred twenty-one trillion, one hundred forty-three billion, four hundred thirty-three million, four hundred thirty-one thousand, three hundred forty-three".