211404341436 has 12 divisors (see below), whose sum is σ = 493276796712. Its totient is φ = 70468113808.

The previous prime is 211404341411. The next prime is 211404341437. The reversal of 211404341436 is 634143404112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 211404341397 and 211404341406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211404341437) 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 3 ways as a sum of consecutive naturals, for example, 8808514215 + ... + 8808514238.

It is an arithmetic number, because the mean of its divisors is an integer number (41106399726).

Almost surely, 2^211404341436 is an apocalyptic number.

It is an amenable number.

211404341436 is an abundant number, since it is smaller than the sum of its proper divisors (281872455276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211404341436 is a wasteful number, since it uses less digits than its factorization.

211404341436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17617028460 (or 17617028458 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 211404341436 its reverse (634143404112), we get a palindrome (845547745548).

The spelling of 211404341436 in words is "two hundred eleven billion, four hundred four million, three hundred forty-one thousand, four hundred thirty-six".