321212311213 has 8 divisors (see below), whose sum is σ = 324480049920. Its totient is φ = 317946286800.

The previous prime is 321212311201. The next prime is 321212311237. The reversal of 321212311213 is 312113212123.

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 321212311213 - 2¹⁷ = 321212180141 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 (321212311613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50233 + ... + 803086.

It is an arithmetic number, because the mean of its divisors is an integer number (40560006240).

Almost surely, 2^321212311213 is an apocalyptic number.

It is an amenable number.

321212311213 is a deficient number, since it is larger than the sum of its proper divisors (3267738707).

321212311213 is a wasteful number, since it uses less digits than its factorization.

321212311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857147.

The product of its digits is 432, while the sum is 22.

Adding to 321212311213 its reverse (312113212123), we get a palindrome (633325523336).

The spelling of 321212311213 in words is "three hundred twenty-one billion, two hundred twelve million, three hundred eleven thousand, two hundred thirteen".