423221054317 has 2 divisors, whose sum is σ = 423221054318. Its totient is φ = 423221054316.

The previous prime is 423221054303. The next prime is 423221054339. The reversal of 423221054317 is 713450122324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284970198276 + 138250856041 = 533826^2 + 371821^2 .

It is a cyclic number.

It is not a de Polignac number, because 423221054317 - 2⁷ = 423221054189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423221054917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211610527158 + 211610527159.

It is an arithmetic number, because the mean of its divisors is an integer number (211610527159).

Almost surely, 2^423221054317 is an apocalyptic number.

It is an amenable number.

423221054317 is a deficient number, since it is larger than the sum of its proper divisors (1).

423221054317 is an equidigital number, since it uses as much as digits as its factorization.

423221054317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 423221054317 in words is "four hundred twenty-three billion, two hundred twenty-one million, fifty-four thousand, three hundred seventeen".