211001434401 has 8 divisors (see below), whose sum is σ = 281337392800. Its totient is φ = 140666549472.

The previous prime is 211001434363. The next prime is 211001434421. The reversal of 211001434401 is 104434100112.

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

It is a de Polignac number, because none of the positive numbers 2^k-211001434401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211001434421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527181 + ... + 836613.

It is an arithmetic number, because the mean of its divisors is an integer number (35167174100).

Almost surely, 2^211001434401 is an apocalyptic number.

It is an amenable number.

211001434401 is a deficient number, since it is larger than the sum of its proper divisors (70335958399).

211001434401 is a wasteful number, since it uses less digits than its factorization.

211001434401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536735.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 211001434401 its reverse (104434100112), we get a palindrome (315435534513).

The spelling of 211001434401 in words is "two hundred eleven billion, one million, four hundred thirty-four thousand, four hundred one".