211113442111312 has 160 divisors (see below), whose sum is σ = 449519462663040. Its totient is φ = 95465819289600.

The previous prime is 211113442111291. The next prime is 211113442111357. The reversal of 211113442111312 is 213111244311112.

It is a happy number.

It is a super-2 number, since 2×211113442111312² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 896356638 + ... + 896592130.

It is an arithmetic number, because the mean of its divisors is an integer number (2809496641644).

Almost surely, 2^{211113442111312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211113442111312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224759731331520).

211113442111312 is an abundant number, since it is smaller than the sum of its proper divisors (238406020551728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211113442111312 is a wasteful number, since it uses less digits than its factorization.

211113442111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236061 (or 236055 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

Adding to 211113442111312 its reverse (213111244311112), we get a palindrome (424224686422424).

The spelling of 211113442111312 in words is "two hundred eleven trillion, one hundred thirteen billion, four hundred forty-two million, one hundred eleven thousand, three hundred twelve".