423240430201 has 2 divisors, whose sum is σ = 423240430202. Its totient is φ = 423240430200.

The previous prime is 423240430099. The next prime is 423240430237. The reversal of 423240430201 is 102034042324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417361221225 + 5879208976 = 646035^2 + 76676^2 .

It is a cyclic number.

It is not a de Polignac number, because 423240430201 - 2⁷ = 423240430073 is a prime.

It is not a weakly prime, because it can be changed into another prime (423240430241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211620215100 + 211620215101.

It is an arithmetic number, because the mean of its divisors is an integer number (211620215101).

Almost surely, 2^423240430201 is an apocalyptic number.

It is an amenable number.

423240430201 is a deficient number, since it is larger than the sum of its proper divisors (1).

423240430201 is an equidigital number, since it uses as much as digits as its factorization.

423240430201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 423240430201 its reverse (102034042324), we get a palindrome (525274472525).

The spelling of 423240430201 in words is "four hundred twenty-three billion, two hundred forty million, four hundred thirty thousand, two hundred one".