423143232201 has 40 divisors (see below), whose sum is σ = 652940038344. Its totient is φ = 272884412160.

The previous prime is 423143232191. The next prime is 423143232203. The reversal of 423143232201 is 102232341324.

423143232201 is a `hidden beast` number, since 4 + 2 + 3 + 1 + 432 + 3 + 220 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 194195336976 + 228947895225 = 440676^2 + 478485^2 .

It is not a de Polignac number, because 423143232201 - 2³⁴ = 405963363017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (423143232203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 110421 + ... + 926541.

Almost surely, 2^423143232201 is an apocalyptic number.

It is an amenable number.

423143232201 is a deficient number, since it is larger than the sum of its proper divisors (229796806143).

423143232201 is a wasteful number, since it uses less digits than its factorization.

423143232201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816343 (or 816334 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 423143232201 its reverse (102232341324), we get a palindrome (525375573525).

The spelling of 423143232201 in words is "four hundred twenty-three billion, one hundred forty-three million, two hundred thirty-two thousand, two hundred one".