211404031104 has 128 divisors (see below), whose sum is σ = 663892214400. Its totient is φ = 58318331904.

The previous prime is 211404031081. The next prime is 211404031109. The reversal of 211404031104 is 401130404112.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (211404031109) 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 15 ways as a sum of consecutive naturals, for example, 1278037 + ... + 1433940.

It is an arithmetic number, because the mean of its divisors is an integer number (5186657925).

Almost surely, 2^211404031104 is an apocalyptic number.

211404031104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211404031104 is an abundant number, since it is smaller than the sum of its proper divisors (452488183296).

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

211404031104 is a wasteful number, since it uses less digits than its factorization.

211404031104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712030 (or 2712018 counting only the distinct ones).

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

Adding to 211404031104 its reverse (401130404112), we get a palindrome (612534435216).

The spelling of 211404031104 in words is "two hundred eleven billion, four hundred four million, thirty-one thousand, one hundred four".