211004134243 has 16 divisors (see below), whose sum is σ = 247765823424. Its totient is φ = 175900982400.

The previous prime is 211004134219. The next prime is 211004134247. The reversal of 211004134243 is 342431400112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211004134243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211004134247) 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 15 ways as a sum of consecutive naturals, for example, 477093 + ... + 805993.

It is an arithmetic number, because the mean of its divisors is an integer number (15485363964).

Almost surely, 2^211004134243 is an apocalyptic number.

211004134243 is a deficient number, since it is larger than the sum of its proper divisors (36761689181).

211004134243 is a wasteful number, since it uses less digits than its factorization.

211004134243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331422.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211004134243 its reverse (342431400112), we get a palindrome (553435534355).

The spelling of 211004134243 in words is "two hundred eleven billion, four million, one hundred thirty-four thousand, two hundred forty-three".