321213411044243 has 16 divisors (see below), whose sum is σ = 333119642069760. Its totient is φ = 309362686819200.

The previous prime is 321213411044143. The next prime is 321213411044257. The reversal of 321213411044243 is 342440114312123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321213411044243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321213411044293) 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, 98770046 + ... + 101970332.

It is an arithmetic number, because the mean of its divisors is an integer number (20819977629360).

Almost surely, 2^{321213411044243} is an apocalyptic number.

321213411044243 is a deficient number, since it is larger than the sum of its proper divisors (11906231025517).

321213411044243 is a wasteful number, since it uses less digits than its factorization.

321213411044243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208958.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 321213411044243 its reverse (342440114312123), we get a palindrome (663653525356366).

The spelling of 321213411044243 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred eleven million, forty-four thousand, two hundred forty-three".