212340313 has 8 divisors (see below), whose sum is σ = 220952448. Its totient is φ = 203898864.

The previous prime is 212340281. The next prime is 212340343. The reversal of 212340313 is 313043212.

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 212340313 - 2⁵ = 212340281 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 40131 + ... + 45112.

It is an arithmetic number, because the mean of its divisors is an integer number (27619056).

Almost surely, 2^212340313 is an apocalyptic number.

It is an amenable number.

212340313 is a deficient number, since it is larger than the sum of its proper divisors (8612135).

212340313 is an equidigital number, since it uses as much as digits as its factorization.

212340313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85343.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 212340313 is about 14571.9014888243. The cubic root of 212340313 is about 596.5920810542.

Adding to 212340313 its reverse (313043212), we get a palindrome (525383525).

It can be divided in two parts, 2123 and 40313, that added together give a square (42436 = 206²).

The spelling of 212340313 in words is "two hundred twelve million, three hundred forty thousand, three hundred thirteen".