212340353 has 16 divisors (see below), whose sum is σ = 233803584. Its totient is φ = 192023040.

The previous prime is 212340343. The next prime is 212340367. The reversal of 212340353 is 353043212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212340353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212340343) 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, 44426 + ... + 48972.

It is an arithmetic number, because the mean of its divisors is an integer number (14612724).

Almost surely, 2^212340353 is an apocalyptic number.

It is an amenable number.

212340353 is a deficient number, since it is larger than the sum of its proper divisors (21463231).

212340353 is a wasteful number, since it uses less digits than its factorization.

212340353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 212340353 is about 14571.9028613287. The cubic root of 212340353 is about 596.5921185155.

Adding to 212340353 its reverse (353043212), we get a palindrome (565383565).

The spelling of 212340353 in words is "two hundred twelve million, three hundred forty thousand, three hundred fifty-three".