211343323344 has 160 divisors (see below), whose sum is σ = 574999328640. Its totient is φ = 66805917696.

The previous prime is 211343323343. The next prime is 211343323357. The reversal of 211343323344 is 443323343112.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211343323343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38868594 + ... + 38874030.

It is an arithmetic number, because the mean of its divisors is an integer number (3593745804).

Almost surely, 2^211343323344 is an apocalyptic number.

211343323344 is a gapful number since it is divisible by the number (24) 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 211343323344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287499664320).

211343323344 is an abundant number, since it is smaller than the sum of its proper divisors (363656005296).

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

211343323344 is a wasteful number, since it uses less digits than its factorization.

211343323344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037 (or 6031 counting only the distinct ones).

The product of its digits is 62208, while the sum is 33.

Adding to 211343323344 its reverse (443323343112), we get a palindrome (654666666456).

The spelling of 211343323344 in words is "two hundred eleven billion, three hundred forty-three million, three hundred twenty-three thousand, three hundred forty-four".