211142244413 has 4 divisors (see below), whose sum is σ = 215634632640. Its totient is φ = 206649856188.

The previous prime is 211142244377. The next prime is 211142244451. The reversal of 211142244413 is 314442241112.

211142244413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 211142244413 - 2⁶ = 211142244349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211142244473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246194043 + ... + 2246194136.

It is an arithmetic number, because the mean of its divisors is an integer number (53908658160).

Almost surely, 2^211142244413 is an apocalyptic number.

It is an amenable number.

211142244413 is a deficient number, since it is larger than the sum of its proper divisors (4492388227).

211142244413 is an equidigital number, since it uses as much as digits as its factorization.

211142244413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492388226.

The product of its digits is 6144, while the sum is 29.

Adding to 211142244413 its reverse (314442241112), we get a palindrome (525584485525).

The spelling of 211142244413 in words is "two hundred eleven billion, one hundred forty-two million, two hundred forty-four thousand, four hundred thirteen".