213436211 has 2 divisors, whose sum is σ = 213436212. Its totient is φ = 213436210.

The previous prime is 213436189. The next prime is 213436213. The reversal of 213436211 is 112634312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213436211 is a prime.

It is a Sophie Germain prime.

Together with 213436213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213436213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106718105 + 106718106.

It is an arithmetic number, because the mean of its divisors is an integer number (106718106).

Almost surely, 2^213436211 is an apocalyptic number.

213436211 is a deficient number, since it is larger than the sum of its proper divisors (1).

213436211 is an equidigital number, since it uses as much as digits as its factorization.

213436211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 213436211 is about 14609.4562184908. The cubic root of 213436211 is about 597.6166667021.

The spelling of 213436211 in words is "two hundred thirteen million, four hundred thirty-six thousand, two hundred eleven".