211203242343 has 32 divisors (see below), whose sum is σ = 321860510720. Its totient is φ = 136779179040.

The previous prime is 211203242303. The next prime is 211203242353. The reversal of 211203242343 is 343242302112.

211203242343 is a `hidden beast` number, since 211 + 20 + 3 + 2 + 423 + 4 + 3 = 666.

It is not a de Polignac number, because 211203242343 - 2⁶ = 211203242279 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211203242303) 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, 462846 + ... + 797892.

It is an arithmetic number, because the mean of its divisors is an integer number (10058140960).

Almost surely, 2^211203242343 is an apocalyptic number.

211203242343 is a deficient number, since it is larger than the sum of its proper divisors (110657268377).

211203242343 is a wasteful number, since it uses less digits than its factorization.

211203242343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335724 (or 335718 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 211203242343 its reverse (343242302112), we get a palindrome (554445544455).

The spelling of 211203242343 in words is "two hundred eleven billion, two hundred three million, two hundred forty-two thousand, three hundred forty-three".