211432542011 has 12 divisors (see below), whose sum is σ = 218610340200. Its totient is φ = 204483474720.

The previous prime is 211432541987. The next prime is 211432542031. The reversal of 211432542011 is 110245234112.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-211432542011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211432542031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1477880 + ... + 1614618.

It is an arithmetic number, because the mean of its divisors is an integer number (18217528350).

Almost surely, 2^211432542011 is an apocalyptic number.

211432542011 is a deficient number, since it is larger than the sum of its proper divisors (7177798189).

211432542011 is a wasteful number, since it uses less digits than its factorization.

211432542011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138410 (or 138379 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 211432542011 its reverse (110245234112), we get a palindrome (321677776123).

The spelling of 211432542011 in words is "two hundred eleven billion, four hundred thirty-two million, five hundred forty-two thousand, eleven".