211240344151 has 2 divisors, whose sum is σ = 211240344152. Its totient is φ = 211240344150.

The previous prime is 211240344109. The next prime is 211240344173. The reversal of 211240344151 is 151443042112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211240344151 - 2¹⁹ = 211239819863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211240344851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105620172075 + 105620172076.

It is an arithmetic number, because the mean of its divisors is an integer number (105620172076).

Almost surely, 2^211240344151 is an apocalyptic number.

211240344151 is a deficient number, since it is larger than the sum of its proper divisors (1).

211240344151 is an equidigital number, since it uses as much as digits as its factorization.

211240344151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 211240344151 its reverse (151443042112), we get a palindrome (362683386263).

The spelling of 211240344151 in words is "two hundred eleven billion, two hundred forty million, three hundred forty-four thousand, one hundred fifty-one".