212311322323 has 4 divisors (see below), whose sum is σ = 219160074688. Its totient is φ = 205462569960.

The previous prime is 212311322309. The next prime is 212311322381. The reversal of 212311322323 is 323223113212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212311322323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212311322303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3424376136 + ... + 3424376197.

It is an arithmetic number, because the mean of its divisors is an integer number (54790018672).

Almost surely, 2^212311322323 is an apocalyptic number.

212311322323 is a deficient number, since it is larger than the sum of its proper divisors (6848752365).

212311322323 is an equidigital number, since it uses as much as digits as its factorization.

212311322323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848752364.

The product of its digits is 2592, while the sum is 25.

Adding to 212311322323 its reverse (323223113212), we get a palindrome (535534435535).

The spelling of 212311322323 in words is "two hundred twelve billion, three hundred eleven million, three hundred twenty-two thousand, three hundred twenty-three".