212420343 has 8 divisors (see below), whose sum is σ = 288571248. Its totient is φ = 138941504.

The previous prime is 212420311. The next prime is 212420347. The reversal of 212420343 is 343024212.

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 212420343 - 2⁵ = 212420311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212420347) 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, 667830 + ... + 668147.

It is an arithmetic number, because the mean of its divisors is an integer number (36071406).

Almost surely, 2^212420343 is an apocalyptic number.

212420343 is a deficient number, since it is larger than the sum of its proper divisors (76150905).

212420343 is a wasteful number, since it uses less digits than its factorization.

212420343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336033.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 212420343 is about 14574.6472684590. The cubic root of 212420343 is about 596.6670224953.

Adding to 212420343 its reverse (343024212), we get a palindrome (555444555).

The spelling of 212420343 in words is "two hundred twelve million, four hundred twenty thousand, three hundred forty-three".