105240211 has 2 divisors, whose sum is σ = 105240212. Its totient is φ = 105240210.

The previous prime is 105240209. The next prime is 105240253. The reversal of 105240211 is 112042501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105240211 - 2¹ = 105240209 is a prime.

It is a super-2 number, since 2×105240211² = 22151004022649042, which contains 22 as substring.

Together with 105240209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (105240281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52620105 + 52620106.

It is an arithmetic number, because the mean of its divisors is an integer number (52620106).

Almost surely, 2^105240211 is an apocalyptic number.

105240211 is a deficient number, since it is larger than the sum of its proper divisors (1).

105240211 is an equidigital number, since it uses as much as digits as its factorization.

105240211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 105240211 is about 10258.6651665799. The cubic root of 105240211 is about 472.1288833979.

Adding to 105240211 its reverse (112042501), we get a palindrome (217282712).

The spelling of 105240211 in words is "one hundred five million, two hundred forty thousand, two hundred eleven".