211351223334461 has 8 divisors (see below), whose sum is σ = 241573137795264. Its totient is φ = 181136529512640.

The previous prime is 211351223334437. The next prime is 211351223334479. The reversal of 211351223334461 is 164433322153112.

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

It is a cyclic number.

It is not a de Polignac number, because 211351223334461 - 2²⁶ = 211351156225597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211351223334761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1805097020 + ... + 1805214101.

It is an arithmetic number, because the mean of its divisors is an integer number (30196642224408).

Almost surely, 2^{211351223334461} is an apocalyptic number.

It is an amenable number.

211351223334461 is a deficient number, since it is larger than the sum of its proper divisors (30221914460803).

211351223334461 is an equidigital number, since it uses as much as digits as its factorization.

211351223334461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610319491.

The product of its digits is 311040, while the sum is 41.

Adding to 211351223334461 its reverse (164433322153112), we get a palindrome (375784545487573).

The spelling of 211351223334461 in words is "two hundred eleven trillion, three hundred fifty-one billion, two hundred twenty-three million, three hundred thirty-four thousand, four hundred sixty-one".