23173947105223 has 4 divisors (see below), whose sum is σ = 23173982247528. Its totient is φ = 23173911962920.

The previous prime is 23173947105187. The next prime is 23173947105233. The reversal of 23173947105223 is 32250174937132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23173947105223 - 2¹³ = 23173947097031 is a prime.

It is a super-2 number, since 2×23173947105223² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23173947105233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16562713 + ... + 17907298.

It is an arithmetic number, because the mean of its divisors is an integer number (5793495561882).

Almost surely, 2^{23173947105223} is an apocalyptic number.

23173947105223 is a deficient number, since it is larger than the sum of its proper divisors (35142305).

23173947105223 is an equidigital number, since it uses as much as digits as its factorization.

23173947105223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35142304.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 23173947105223 in words is "twenty-three trillion, one hundred seventy-three billion, nine hundred forty-seven million, one hundred five thousand, two hundred twenty-three".