211040112401 has 4 divisors (see below), whose sum is σ = 211049233332. Its totient is φ = 211030991472.

The previous prime is 211040112397. The next prime is 211040112407. The reversal of 211040112401 is 104211040112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15896166400 + 195143946001 = 126080^2 + 441751^2 .

It is a cyclic number.

It is not a de Polignac number, because 211040112401 - 2² = 211040112397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211040112401.

It is not an unprimeable number, because it can be changed into a prime (211040112407) 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, 4525670 + ... + 4572063.

It is an arithmetic number, because the mean of its divisors is an integer number (52762308333).

Almost surely, 2^211040112401 is an apocalyptic number.

It is an amenable number.

211040112401 is a deficient number, since it is larger than the sum of its proper divisors (9120931).

211040112401 is an equidigital number, since it uses as much as digits as its factorization.

211040112401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9120930.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211040112401 its reverse (104211040112), we get a palindrome (315251152513).

The spelling of 211040112401 in words is "two hundred eleven billion, forty million, one hundred twelve thousand, four hundred one".