311321021210213 has 8 divisors (see below), whose sum is σ = 355797148183680. Its totient is φ = 266845318079760.

The previous prime is 311321021210131. The next prime is 311321021210261. The reversal of 311321021210213 is 312012120123113.

It is a happy number.

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

It is not a de Polignac number, because 311321021210213 - 2¹⁴ = 311321021193829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311321021218213) 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, 104385218 + ... + 107326211.

It is an arithmetic number, because the mean of its divisors is an integer number (44474643522960).

Almost surely, 2^{311321021210213} is an apocalyptic number.

It is an amenable number.

311321021210213 is a deficient number, since it is larger than the sum of its proper divisors (44476126973467).

311321021210213 is a wasteful number, since it uses less digits than its factorization.

311321021210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211921507.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311321021210213 its reverse (312012120123113), we get a palindrome (623333141333326).

The spelling of 311321021210213 in words is "three hundred eleven trillion, three hundred twenty-one billion, twenty-one million, two hundred ten thousand, two hundred thirteen".