212323311311 has 4 divisors (see below), whose sum is σ = 212901849312. Its totient is φ = 211744773312.

The previous prime is 212323311259. The next prime is 212323311313. The reversal of 212323311311 is 113113323212.

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

It is a cyclic number.

It is not a de Polignac number, because 212323311311 - 2³⁴ = 195143442127 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 (212323311313) 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, 289268450 + ... + 289269183.

It is an arithmetic number, because the mean of its divisors is an integer number (53225462328).

Almost surely, 2^212323311311 is an apocalyptic number.

212323311311 is a deficient number, since it is larger than the sum of its proper divisors (578538001).

212323311311 is an equidigital number, since it uses as much as digits as its factorization.

212323311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578538000.

The product of its digits is 648, while the sum is 23.

Adding to 212323311311 its reverse (113113323212), we get a palindrome (325436634523).

The spelling of 212323311311 in words is "two hundred twelve billion, three hundred twenty-three million, three hundred eleven thousand, three hundred eleven".