211242313241 has 8 divisors (see below), whose sum is σ = 215767234560. Its totient is φ = 206718658848.

The previous prime is 211242313207. The next prime is 211242313309. The reversal of 211242313241 is 142313242112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211242313241 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 211242313241.

It is not an unprimeable number, because it can be changed into a prime (211242310241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24200 + ... + 650438.

It is an arithmetic number, because the mean of its divisors is an integer number (26970904320).

Almost surely, 2^211242313241 is an apocalyptic number.

It is an amenable number.

211242313241 is a deficient number, since it is larger than the sum of its proper divisors (4524921319).

211242313241 is an equidigital number, since it uses as much as digits as its factorization.

211242313241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633463.

The product of its digits is 2304, while the sum is 26.

Adding to 211242313241 its reverse (142313242112), we get a palindrome (353555555353).

The spelling of 211242313241 in words is "two hundred eleven billion, two hundred forty-two million, three hundred thirteen thousand, two hundred forty-one".