212231343 has 8 divisors (see below), whose sum is σ = 283047856. Its totient is φ = 141451200.

The previous prime is 212231339. The next prime is 212231377. The reversal of 212231343 is 343132212.

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

It is not a de Polignac number, because 212231343 - 2² = 212231339 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 (212231543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10653 + ... + 23193.

It is an arithmetic number, because the mean of its divisors is an integer number (35380982).

Almost surely, 2^212231343 is an apocalyptic number.

212231343 is a deficient number, since it is larger than the sum of its proper divisors (70816513).

212231343 is a wasteful number, since it uses less digits than its factorization.

212231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18185.

The product of its digits is 864, while the sum is 21.

The square root of 212231343 is about 14568.1619636796. The cubic root of 212231343 is about 596.4900094281.

Adding to 212231343 its reverse (343132212), we get a palindrome (555363555).

The spelling of 212231343 in words is "two hundred twelve million, two hundred thirty-one thousand, three hundred forty-three".