211423314343 has 4 divisors (see below), whose sum is σ = 211568823928. Its totient is φ = 211277804760.

The previous prime is 211423314329. The next prime is 211423314373. The reversal of 211423314343 is 343413324112.

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 211423314343 - 2¹⁷ = 211423183271 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 (211423314373) 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, 72752613 + ... + 72755518.

It is an arithmetic number, because the mean of its divisors is an integer number (52892205982).

Almost surely, 2^211423314343 is an apocalyptic number.

211423314343 is a deficient number, since it is larger than the sum of its proper divisors (145509585).

211423314343 is a wasteful number, since it uses less digits than its factorization.

211423314343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145509584.

The product of its digits is 20736, while the sum is 31.

Adding to 211423314343 its reverse (343413324112), we get a palindrome (554836638455).

The spelling of 211423314343 in words is "two hundred eleven billion, four hundred twenty-three million, three hundred fourteen thousand, three hundred forty-three".