211242344213 has 4 divisors (see below), whose sum is σ = 211247599680. Its totient is φ = 211237088748.

The previous prime is 211242344161. The next prime is 211242344231. The reversal of 211242344213 is 312443242112.

211242344213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211242344213 - 2¹⁸ = 211242082069 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 (211242344263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2566973 + ... + 2647986.

It is an arithmetic number, because the mean of its divisors is an integer number (52811899920).

Almost surely, 2^211242344213 is an apocalyptic number.

It is an amenable number.

211242344213 is a deficient number, since it is larger than the sum of its proper divisors (5255467).

211242344213 is an equidigital number, since it uses as much as digits as its factorization.

211242344213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255466.

The product of its digits is 9216, while the sum is 29.

Adding to 211242344213 its reverse (312443242112), we get a palindrome (523685586325).

The spelling of 211242344213 in words is "two hundred eleven billion, two hundred forty-two million, three hundred forty-four thousand, two hundred thirteen".