220343423 has 2 divisors, whose sum is σ = 220343424. Its totient is φ = 220343422.

The previous prime is 220343411. The next prime is 220343449. The reversal of 220343423 is 324343022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220343423 - 2⁶ = 220343359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220343623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110171711 + 110171712.

It is an arithmetic number, because the mean of its divisors is an integer number (110171712).

Almost surely, 2^220343423 is an apocalyptic number.

220343423 is a deficient number, since it is larger than the sum of its proper divisors (1).

220343423 is an equidigital number, since it uses as much as digits as its factorization.

220343423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 220343423 is about 14843.9692468019. The cubic root of 220343423 is about 603.9950285031.

Adding to 220343423 its reverse (324343022), we get a palindrome (544686445).

The spelling of 220343423 in words is "two hundred twenty million, three hundred forty-three thousand, four hundred twenty-three".