211434043354 has 8 divisors (see below), whose sum is σ = 318794335380. Its totient is φ = 105169264896.

The previous prime is 211434043351. The next prime is 211434043391. The reversal of 211434043354 is 453340434112.

It can be written as a sum of positive squares in 2 ways, for example, as 171087295129 + 40346748225 = 413627^2 + 200865^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (211434043351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273877909 + ... + 273878680.

Almost surely, 2^211434043354 is an apocalyptic number.

211434043354 is a deficient number, since it is larger than the sum of its proper divisors (107360292026).

211434043354 is a wasteful number, since it uses less digits than its factorization.

211434043354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547756784.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 211434043354 its reverse (453340434112), we get a palindrome (664774477466).

The spelling of 211434043354 in words is "two hundred eleven billion, four hundred thirty-four million, forty-three thousand, three hundred fifty-four".