321101123440213 has 4 divisors (see below), whose sum is σ = 321104138552428. Its totient is φ = 321098108328000.

The previous prime is 321101123440193. The next prime is 321101123440241. The reversal of 321101123440213 is 312044321101123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260114738693329 + 60986384746884 = 16128073^2 + 7809378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321101123440213 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 (321101123440243) 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, 1507396356 + ... + 1507609357.

It is an arithmetic number, because the mean of its divisors is an integer number (80276034638107).

Almost surely, 2^{321101123440213} is an apocalyptic number.

It is an amenable number.

321101123440213 is a deficient number, since it is larger than the sum of its proper divisors (3015112215).

321101123440213 is a wasteful number, since it uses less digits than its factorization.

321101123440213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015112214.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 321101123440213 its reverse (312044321101123), we get a palindrome (633145444541336).

The spelling of 321101123440213 in words is "three hundred twenty-one trillion, one hundred one billion, one hundred twenty-three million, four hundred forty thousand, two hundred thirteen".