423435203144417 has 2 divisors, whose sum is σ = 423435203144418. Its totient is φ = 423435203144416.

The previous prime is 423435203144413. The next prime is 423435203144483. The reversal of 423435203144417 is 714441302534324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248293165097041 + 175142038047376 = 15757321^2 + 13234124^2 .

It is a cyclic number.

It is not a de Polignac number, because 423435203144417 - 2² = 423435203144413 is a prime.

It is not a weakly prime, because it can be changed into another prime (423435203144413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211717601572208 + 211717601572209.

It is an arithmetic number, because the mean of its divisors is an integer number (211717601572209).

Almost surely, 2^{423435203144417} is an apocalyptic number.

It is an amenable number.

423435203144417 is a deficient number, since it is larger than the sum of its proper divisors (1).

423435203144417 is an equidigital number, since it uses as much as digits as its factorization.

423435203144417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 47.

The spelling of 423435203144417 in words is "four hundred twenty-three trillion, four hundred thirty-five billion, two hundred three million, one hundred forty-four thousand, four hundred seventeen".