212043343305101 has 32 divisors (see below), whose sum is σ = 264530470368000. Its totient is φ = 165125646766080.

The previous prime is 212043343305071. The next prime is 212043343305121. The reversal of 212043343305101 is 101503343340212.

It is a de Polignac number, because none of the positive numbers 2^k-212043343305101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212043343305121) 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, 805844165 + ... + 806107253.

It is an arithmetic number, because the mean of its divisors is an integer number (8266577199000).

Almost surely, 2^{212043343305101} is an apocalyptic number.

It is an amenable number.

212043343305101 is a deficient number, since it is larger than the sum of its proper divisors (52487127062899).

212043343305101 is a wasteful number, since it uses less digits than its factorization.

212043343305101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269589.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 212043343305101 its reverse (101503343340212), we get a palindrome (313546686645313).

The spelling of 212043343305101 in words is "two hundred twelve trillion, forty-three billion, three hundred forty-three million, three hundred five thousand, one hundred one".