211115209144321 has 8 divisors (see below), whose sum is σ = 211133028958560. Its totient is φ = 211097389844352.

The previous prime is 211115209144313. The next prime is 211115209144339. The reversal of 211115209144321 is 123441902511112.

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 211115209144321 - 2³ = 211115209144313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211115209144381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482135921 + ... + 1482278353.

It is an arithmetic number, because the mean of its divisors is an integer number (26391628619820).

Almost surely, 2^{211115209144321} is an apocalyptic number.

It is an amenable number.

211115209144321 is a deficient number, since it is larger than the sum of its proper divisors (17819814239).

211115209144321 is a wasteful number, since it uses less digits than its factorization.

211115209144321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257135.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 211115209144321 in words is "two hundred eleven trillion, one hundred fifteen billion, two hundred nine million, one hundred forty-four thousand, three hundred twenty-one".