220168423 has 2 divisors, whose sum is σ = 220168424. Its totient is φ = 220168422.

The previous prime is 220168393. The next prime is 220168441. The reversal of 220168423 is 324861022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220168423 - 2⁹ = 220167911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220168391 and 220168400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220168723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110084211 + 110084212.

It is an arithmetic number, because the mean of its divisors is an integer number (110084212).

Almost surely, 2^220168423 is an apocalyptic number.

220168423 is a deficient number, since it is larger than the sum of its proper divisors (1).

220168423 is an equidigital number, since it uses as much as digits as its factorization.

220168423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 220168423 is about 14838.0734261561. The cubic root of 220168423 is about 603.8350855627.

The spelling of 220168423 in words is "two hundred twenty million, one hundred sixty-eight thousand, four hundred twenty-three".