212320311331 has 8 divisors (see below), whose sum is σ = 219266019200. Its totient is φ = 205380645120.

The previous prime is 212320311323. The next prime is 212320311349. The reversal of 212320311331 is 133113023212.

212320311331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212320311331 - 2³ = 212320311323 is a prime.

It is a super-2 number, since 2×212320311331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212320311431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438926 + ... + 1579603.

It is an arithmetic number, because the mean of its divisors is an integer number (27408252400).

Almost surely, 2^212320311331 is an apocalyptic number.

212320311331 is a deficient number, since it is larger than the sum of its proper divisors (6945707869).

212320311331 is a wasteful number, since it uses less digits than its factorization.

212320311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020829.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212320311331 its reverse (133113023212), we get a palindrome (345433334543).

The spelling of 212320311331 in words is "two hundred twelve billion, three hundred twenty million, three hundred eleven thousand, three hundred thirty-one".