211301213 has 4 divisors (see below), whose sum is σ = 211444800. Its totient is φ = 211157628.

The previous prime is 211301171. The next prime is 211301227. The reversal of 211301213 is 312103112.

211301213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211301213 - 2¹⁶ = 211235677 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 (211301263) 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, 69563 + ... + 72536.

It is an arithmetic number, because the mean of its divisors is an integer number (52861200).

Almost surely, 2^211301213 is an apocalyptic number.

It is an amenable number.

211301213 is a deficient number, since it is larger than the sum of its proper divisors (143587).

211301213 is a wasteful number, since it uses less digits than its factorization.

211301213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143586.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 211301213 is about 14536.2035277441. The cubic root of 211301213 is about 595.6173363405.

Adding to 211301213 its reverse (312103112), we get a palindrome (523404325).

The spelling of 211301213 in words is "two hundred eleven million, three hundred one thousand, two hundred thirteen".