211131341 has 2 divisors, whose sum is σ = 211131342. Its totient is φ = 211131340.

The previous prime is 211131337. The next prime is 211131373. The reversal of 211131341 is 143131112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190164100 + 20967241 = 13790^2 + 4579^2 .

It is a cyclic number.

It is not a de Polignac number, because 211131341 - 2² = 211131337 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211131331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105565670 + 105565671.

It is an arithmetic number, because the mean of its divisors is an integer number (105565671).

Almost surely, 2^211131341 is an apocalyptic number.

It is an amenable number.

211131341 is a deficient number, since it is larger than the sum of its proper divisors (1).

211131341 is an equidigital number, since it uses as much as digits as its factorization.

211131341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 17.

The square root of 211131341 is about 14530.3592866797. The cubic root of 211131341 is about 595.4576814218.

Adding to 211131341 its reverse (143131112), we get a palindrome (354262453).

The spelling of 211131341 in words is "two hundred eleven million, one hundred thirty-one thousand, three hundred forty-one".