212300311 has 4 divisors (see below), whose sum is σ = 214489072. Its totient is φ = 210111552.

The previous prime is 212300299. The next prime is 212300321. The reversal of 212300311 is 113003212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212300311 - 2¹⁹ = 211776023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212300291 and 212300300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212300321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094235 + ... + 1094428.

It is an arithmetic number, because the mean of its divisors is an integer number (53622268).

Almost surely, 2^212300311 is an apocalyptic number.

212300311 is a deficient number, since it is larger than the sum of its proper divisors (2188761).

212300311 is an equidigital number, since it uses as much as digits as its factorization.

212300311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188760.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 212300311 is about 14570.5288510747. The cubic root of 212300311 is about 596.5546154487.

Adding to 212300311 its reverse (113003212), we get a palindrome (325303523).

The spelling of 212300311 in words is "two hundred twelve million, three hundred thousand, three hundred eleven".