23172181066211 has 16 divisors (see below), whose sum is σ = 25830116645760. Its totient is φ = 20658433910400.

The previous prime is 23172181066169. The next prime is 23172181066219. The reversal of 23172181066211 is 11266018127132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23172181066211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23172181066219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2548865 + ... + 7269186.

It is an arithmetic number, because the mean of its divisors is an integer number (1614382290360).

Almost surely, 2^{23172181066211} is an apocalyptic number.

23172181066211 is a deficient number, since it is larger than the sum of its proper divisors (2657935579549).

23172181066211 is a wasteful number, since it uses less digits than its factorization.

23172181066211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825394.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 23172181066211 in words is "twenty-three trillion, one hundred seventy-two billion, one hundred eighty-one million, sixty-six thousand, two hundred eleven".