211040012441 has 4 divisors (see below), whose sum is σ = 211040950272. Its totient is φ = 211039074612.

The previous prime is 211040012429. The next prime is 211040012471. The reversal of 211040012441 is 144210040112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211040012441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211040012471) 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, 93416 + ... + 656358.

It is an arithmetic number, because the mean of its divisors is an integer number (52760237568).

Almost surely, 2^211040012441 is an apocalyptic number.

It is an amenable number.

211040012441 is a deficient number, since it is larger than the sum of its proper divisors (937831).

211040012441 is an equidigital number, since it uses as much as digits as its factorization.

211040012441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937830.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211040012441 its reverse (144210040112), we get a palindrome (355250052553).

The spelling of 211040012441 in words is "two hundred eleven billion, forty million, twelve thousand, four hundred forty-one".