211242423343 has 8 divisors (see below), whose sum is σ = 242502514688. Its totient is φ = 180252982584.

The previous prime is 211242423341. The next prime is 211242423361. The reversal of 211242423343 is 343324242112.

211242423343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211242423343 - 2¹ = 211242423341 is a prime.

It is a super-2 number, since 2×211242423343² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211242423341) 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 7 ways as a sum of consecutive naturals, for example, 67660971 + ... + 67664092.

It is an arithmetic number, because the mean of its divisors is an integer number (30312814336).

Almost surely, 2^211242423343 is an apocalyptic number.

211242423343 is a deficient number, since it is larger than the sum of its proper divisors (31260091345).

211242423343 is a wasteful number, since it uses less digits than its factorization.

211242423343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135325293.

The product of its digits is 27648, while the sum is 31.

Adding to 211242423343 its reverse (343324242112), we get a palindrome (554566665455).

The spelling of 211242423343 in words is "two hundred eleven billion, two hundred forty-two million, four hundred twenty-three thousand, three hundred forty-three".