211341321 has 6 divisors (see below), whose sum is σ = 305270810. Its totient is φ = 140894208.

The previous prime is 211341307. The next prime is 211341341. The reversal of 211341321 is 123143112.

211341321 is a `hidden beast` number, since 2 + 1 + 1 + 341 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 130988025 + 80353296 = 11445^2 + 8964^2 .

It is not a de Polignac number, because 211341321 - 2⁵ = 211341289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211341294 and 211341303.

It is not an unprimeable number, because it can be changed into a prime (211341341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11741176 + ... + 11741193.

Almost surely, 2^211341321 is an apocalyptic number.

It is an amenable number.

211341321 is a deficient number, since it is larger than the sum of its proper divisors (93929489).

211341321 is a wasteful number, since it uses less digits than its factorization.

211341321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23482375 (or 23482372 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 211341321 is about 14537.5830522133. The cubic root of 211341321 is about 595.6550195266.

Adding to 211341321 its reverse (123143112), we get a palindrome (334484433).

It can be divided in two parts, 2113 and 41321, that added together give a palindrome (43434).

The spelling of 211341321 in words is "two hundred eleven million, three hundred forty-one thousand, three hundred twenty-one".