211231144344 has 128 divisors (see below), whose sum is σ = 612405722880. Its totient is φ = 60003840000.

The previous prime is 211231144297. The next prime is 211231144351. The reversal of 211231144344 is 443441132112.

It is a happy number.

211231144344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 1032732 + ... + 1220244.

It is an arithmetic number, because the mean of its divisors is an integer number (4784419710).

Almost surely, 2^211231144344 is an apocalyptic number.

211231144344 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 211231144344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306202861440).

211231144344 is an abundant number, since it is smaller than the sum of its proper divisors (401174578536).

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

211231144344 is a wasteful number, since it uses less digits than its factorization.

211231144344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187801 (or 187797 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

Adding to 211231144344 its reverse (443441132112), we get a palindrome (654672276456).

The spelling of 211231144344 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred forty-four thousand, three hundred forty-four".