211354134106 has 4 divisors (see below), whose sum is σ = 317031201162. Its totient is φ = 105677067052.

The previous prime is 211354134097. The next prime is 211354134109. The reversal of 211354134106 is 601431453112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 164950511881 + 46403622225 = 406141^2 + 215415^2 .

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 as a sum of consecutive naturals, namely, 52838533525 + ... + 52838533528.

Almost surely, 2^211354134106 is an apocalyptic number.

211354134106 is a deficient number, since it is larger than the sum of its proper divisors (105677067056).

211354134106 is a wasteful number, since it uses less digits than its factorization.

211354134106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105677067055.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 211354134106 its reverse (601431453112), we get a palindrome (812785587218).

The spelling of 211354134106 in words is "two hundred eleven billion, three hundred fifty-four million, one hundred thirty-four thousand, one hundred six".