423243201 has 4 divisors (see below), whose sum is σ = 564324272. Its totient is φ = 282162132.

The previous prime is 423243181. The next prime is 423243229. The reversal of 423243201 is 102342324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 423243201 - 2⁶ = 423243137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423243241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70540531 + ... + 70540536.

It is an arithmetic number, because the mean of its divisors is an integer number (141081068).

Almost surely, 2^423243201 is an apocalyptic number.

It is an amenable number.

423243201 is a deficient number, since it is larger than the sum of its proper divisors (141081071).

423243201 is a wasteful number, since it uses less digits than its factorization.

423243201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141081070.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 423243201 is about 20572.8753702539. The cubic root of 423243201 is about 750.8099108555.

Adding to 423243201 its reverse (102342324), we get a palindrome (525585525).

The spelling of 423243201 in words is "four hundred twenty-three million, two hundred forty-three thousand, two hundred one".