211134202431111 has 12 divisors (see below), whose sum is σ = 304972065099520. Its totient is φ = 140755932169920.

The previous prime is 211134202431007. The next prime is 211134202431127. The reversal of 211134202431111 is 111134202431112.

211134202431111 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 342 + 0 + 2 + 4 + 311 + 1 + 1 = 666.

It is not a de Polignac number, because 211134202431111 - 2¹¹ = 211134202429063 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 (211134202431511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10163266 + ... + 22925103.

Almost surely, 2^{211134202431111} is an apocalyptic number.

211134202431111 is a deficient number, since it is larger than the sum of its proper divisors (93837862668409).

211134202431111 is a wasteful number, since it uses less digits than its factorization.

211134202431111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33797366 (or 33797363 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 211134202431111 its reverse (111134202431112), we get a palindrome (322268404862223).

Subtracting from 211134202431111 its reverse (111134202431112), we obtain a palindrome (99999999999999).

The spelling of 211134202431111 in words is "two hundred eleven trillion, one hundred thirty-four billion, two hundred two million, four hundred thirty-one thousand, one hundred eleven".