21116140234611 has 8 divisors (see below), whose sum is σ = 28156022430144. Its totient is φ = 14076842431080.

The previous prime is 21116140234603. The next prime is 21116140234613. The reversal of 21116140234611 is 11643204161112.

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

It is not a de Polignac number, because 21116140234611 - 2³ = 21116140234603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21116140234613) 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, 146013681 + ... + 146158226.

It is an arithmetic number, because the mean of its divisors is an integer number (3519502803768).

Almost surely, 2^{21116140234611} is an apocalyptic number.

21116140234611 is a deficient number, since it is larger than the sum of its proper divisors (7039882195533).

21116140234611 is a wasteful number, since it uses less digits than its factorization.

21116140234611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292196001.

The product of its (nonzero) digits is 6912, while the sum is 33.

Adding to 21116140234611 its reverse (11643204161112), we get a palindrome (32759344395723).

The spelling of 21116140234611 in words is "twenty-one trillion, one hundred sixteen billion, one hundred forty million, two hundred thirty-four thousand, six hundred eleven".