212112444343 has 4 divisors (see below), whose sum is σ = 212134034440. Its totient is φ = 212090854248.

The previous prime is 212112444287. The next prime is 212112444371. The reversal of 212112444343 is 343444211212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212112444343 - 2⁹ = 212112443831 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 (212112442343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10780305 + ... + 10799962.

It is an arithmetic number, because the mean of its divisors is an integer number (53033508610).

Almost surely, 2^212112444343 is an apocalyptic number.

212112444343 is a deficient number, since it is larger than the sum of its proper divisors (21590097).

212112444343 is an equidigital number, since it uses as much as digits as its factorization.

212112444343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21590096.

The product of its digits is 18432, while the sum is 31.

Adding to 212112444343 its reverse (343444211212), we get a palindrome (555556655555).

The spelling of 212112444343 in words is "two hundred twelve billion, one hundred twelve million, four hundred forty-four thousand, three hundred forty-three".