212113311311 has 16 divisors (see below), whose sum is σ = 241179813888. Its totient is φ = 184798173600.

The previous prime is 212113311307. The next prime is 212113311341. The reversal of 212113311311 is 113113311212.

It is a cyclic number.

It is not a de Polignac number, because 212113311311 - 2² = 212113311307 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 (212113311341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2984456 + ... + 3054701.

It is an arithmetic number, because the mean of its divisors is an integer number (15073738368).

Almost surely, 2^212113311311 is an apocalyptic number.

212113311311 is a deficient number, since it is larger than the sum of its proper divisors (29066502577).

212113311311 is a wasteful number, since it uses less digits than its factorization.

212113311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6039302.

The product of its digits is 108, while the sum is 20.

Adding to 212113311311 its reverse (113113311212), we get a palindrome (325226622523).

Subtracting from 212113311311 its reverse (113113311212), we obtain a palindrome (99000000099).

The spelling of 212113311311 in words is "two hundred twelve billion, one hundred thirteen million, three hundred eleven thousand, three hundred eleven".