8423705123 has 2 divisors, whose sum is σ = 8423705124. Its totient is φ = 8423705122.

The previous prime is 8423705107. The next prime is 8423705179. The reversal of 8423705123 is 3215073248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8423705123 - 2⁴ = 8423705107 is a prime.

It is not a weakly prime, because it can be changed into another prime (8423765123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4211852561 + 4211852562.

It is an arithmetic number, because the mean of its divisors is an integer number (4211852562).

Almost surely, 2^8423705123 is an apocalyptic number.

8423705123 is a deficient number, since it is larger than the sum of its proper divisors (1).

8423705123 is an equidigital number, since it uses as much as digits as its factorization.

8423705123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 8423705123 is about 91780.7448379016. The cubic root of 8423705123 is about 2034.7031240724.

The spelling of 8423705123 in words is "eight billion, four hundred twenty-three million, seven hundred five thousand, one hundred twenty-three".