321340144213 has 16 divisors (see below), whose sum is σ = 361178782272. Its totient is φ = 283354864000.

The previous prime is 321340144201. The next prime is 321340144219. The reversal of 321340144213 is 312441043123.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321340144213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321340144219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1981243 + ... + 2137288.

It is an arithmetic number, because the mean of its divisors is an integer number (22573673892).

Almost surely, 2^321340144213 is an apocalyptic number.

It is an amenable number.

321340144213 is a deficient number, since it is larger than the sum of its proper divisors (39838638059).

321340144213 is a wasteful number, since it uses less digits than its factorization.

321340144213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118756.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 321340144213 its reverse (312441043123), we get a palindrome (633781187336).

The spelling of 321340144213 in words is "three hundred twenty-one billion, three hundred forty million, one hundred forty-four thousand, two hundred thirteen".