211354134105 has 32 divisors (see below), whose sum is σ = 361277798400. Its totient is φ = 105195575232.

The previous prime is 211354134097. The next prime is 211354134109. The reversal of 211354134105 is 501431453112.

It is not a de Polignac number, because 211354134105 - 2³ = 211354134097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211354134109) 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 31 ways as a sum of consecutive naturals, for example, 5515185 + ... + 5553374.

It is an arithmetic number, because the mean of its divisors is an integer number (11289931200).

Almost surely, 2^211354134105 is an apocalyptic number.

It is an amenable number.

211354134105 is a deficient number, since it is larger than the sum of its proper divisors (149923664295).

211354134105 is a wasteful number, since it uses less digits than its factorization.

211354134105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11068653.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 211354134105 its reverse (501431453112), we get a palindrome (712785587217).

The spelling of 211354134105 in words is "two hundred eleven billion, three hundred fifty-four million, one hundred thirty-four thousand, one hundred five".