211404322343 has 16 divisors (see below), whose sum is σ = 215032790016. Its totient is φ = 207808648320.

The previous prime is 211404322271. The next prime is 211404322361. The reversal of 211404322343 is 343223404112.

It is a cyclic number.

It is not a de Polignac number, because 211404322343 - 2³⁶ = 142684845607 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 (211404222343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33199946 + ... + 33206312.

It is an arithmetic number, because the mean of its divisors is an integer number (13439549376).

Almost surely, 2^211404322343 is an apocalyptic number.

211404322343 is a deficient number, since it is larger than the sum of its proper divisors (3628467673).

211404322343 is a wasteful number, since it uses less digits than its factorization.

211404322343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8854.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 211404322343 its reverse (343223404112), we get a palindrome (554627726455).

The spelling of 211404322343 in words is "two hundred eleven billion, four hundred four million, three hundred twenty-two thousand, three hundred forty-three".