423123017 has 2 divisors, whose sum is σ = 423123018. Its totient is φ = 423123016.

The previous prime is 423122983. The next prime is 423123059. The reversal of 423123017 is 710321324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392475721 + 30647296 = 19811^2 + 5536^2 .

It is a cyclic number.

It is not a de Polignac number, because 423123017 - 2¹⁴ = 423106633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423122983 and 423123001.

It is not a weakly prime, because it can be changed into another prime (423120017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211561508 + 211561509.

It is an arithmetic number, because the mean of its divisors is an integer number (211561509).

Almost surely, 2^423123017 is an apocalyptic number.

It is an amenable number.

423123017 is a deficient number, since it is larger than the sum of its proper divisors (1).

423123017 is an equidigital number, since it uses as much as digits as its factorization.

423123017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 423123017 is about 20569.9542294095. The cubic root of 423123017 is about 750.7388375494.

The spelling of 423123017 in words is "four hundred twenty-three million, one hundred twenty-three thousand, seventeen".