220123223 has 2 divisors, whose sum is σ = 220123224. Its totient is φ = 220123222.

The previous prime is 220123199. The next prime is 220123229. The reversal of 220123223 is 322321022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220123223 - 2⁸ = 220122967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220123229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061611 + 110061612.

It is an arithmetic number, because the mean of its divisors is an integer number (110061612).

Almost surely, 2^220123223 is an apocalyptic number.

220123223 is a deficient number, since it is larger than the sum of its proper divisors (1).

220123223 is an equidigital number, since it uses as much as digits as its factorization.

220123223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 220123223 is about 14836.5502391897. The cubic root of 220123223 is about 603.7937608147.

Adding to 220123223 its reverse (322321022), we get a palindrome (542444245).

The spelling of 220123223 in words is "two hundred twenty million, one hundred twenty-three thousand, two hundred twenty-three".