211123321112 has 64 divisors (see below), whose sum is σ = 436299035040. Its totient is φ = 94975744000.

The previous prime is 211123321091. The next prime is 211123321121.

211123321112 is nontrivially palindromic in base 10.

211123321112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38544518 + ... + 38549994.

Almost surely, 2^211123321112 is an apocalyptic number.

211123321112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211123321112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218149517520).

211123321112 is an abundant number, since it is smaller than the sum of its proper divisors (225175713928).

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

211123321112 is a wasteful number, since it uses less digits than its factorization.

211123321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9932 (or 9928 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

It can be divided in two parts, 211123 and 321112, that added together give a palindrome (532235).

The spelling of 211123321112 in words is "two hundred eleven billion, one hundred twenty-three million, three hundred twenty-one thousand, one hundred twelve".