321205213223 has 8 divisors (see below), whose sum is σ = 329896596288. Its totient is φ = 312514365024.

The previous prime is 321205213201. The next prime is 321205213249. The reversal of 321205213223 is 322312502123.

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

It is a cyclic number.

It is not a de Polignac number, because 321205213223 - 2¹⁴ = 321205196839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321205213192 and 321205213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321205213123) 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, 1284290 + ... + 1513872.

It is an arithmetic number, because the mean of its divisors is an integer number (41237074536).

Almost surely, 2^321205213223 is an apocalyptic number.

321205213223 is a deficient number, since it is larger than the sum of its proper divisors (8691383065).

321205213223 is a wasteful number, since it uses less digits than its factorization.

321205213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267433.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 321205213223 its reverse (322312502123), we get a palindrome (643517715346).

The spelling of 321205213223 in words is "three hundred twenty-one billion, two hundred five million, two hundred thirteen thousand, two hundred twenty-three".