212046311 has 8 divisors (see below), whose sum is σ = 214299360. Its totient is φ = 209799072.

The previous prime is 212046299. The next prime is 212046313. The reversal of 212046311 is 113640212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212046311 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 (212046313) 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, 141281 + ... + 142773.

It is an arithmetic number, because the mean of its divisors is an integer number (26787420).

Almost surely, 2^212046311 is an apocalyptic number.

212046311 is a deficient number, since it is larger than the sum of its proper divisors (2253049).

212046311 is a wasteful number, since it uses less digits than its factorization.

212046311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 212046311 is about 14561.8100179888. The cubic root of 212046311 is about 596.3166108647.

Adding to 212046311 its reverse (113640212), we get a palindrome (325686523).

The spelling of 212046311 in words is "two hundred twelve million, forty-six thousand, three hundred eleven".