211242331109 has 8 divisors (see below), whose sum is σ = 224803726488. Its totient is φ = 197807088640.

The previous prime is 211242331103. The next prime is 211242331159. The reversal of 211242331109 is 901133242112.

211242331109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 171251130625 + 39991200484 = 413825^2 + 199978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211242331109 - 2²⁰ = 211241282533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211242331103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31534772 + ... + 31541469.

It is an arithmetic number, because the mean of its divisors is an integer number (28100465811).

Almost surely, 2^211242331109 is an apocalyptic number.

It is an amenable number.

211242331109 is a deficient number, since it is larger than the sum of its proper divisors (13561395379).

211242331109 is a wasteful number, since it uses less digits than its factorization.

211242331109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63076455.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 211242331109 in words is "two hundred eleven billion, two hundred forty-two million, three hundred thirty-one thousand, one hundred nine".