43420020201 has 12 divisors (see below), whose sum is σ = 63653894512. Its totient is φ = 28514639736.

The previous prime is 43420020179. The next prime is 43420020209. The reversal of 43420020201 is 10202002434.

43420020201 is a `hidden beast` number, since 43 + 420 + 0 + 2 + 0 + 201 = 666.

It is not a de Polignac number, because 43420020201 - 2⁵ = 43420020169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43420020209) 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 11 ways as a sum of consecutive naturals, for example, 36002731 + ... + 36003936.

Almost surely, 2^43420020201 is an apocalyptic number.

It is an amenable number.

43420020201 is a deficient number, since it is larger than the sum of its proper divisors (20233874311).

43420020201 is a wasteful number, since it uses less digits than its factorization.

43420020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72006740 (or 72006737 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 43420020201 its reverse (10202002434), we get a palindrome (53622022635).

The spelling of 43420020201 in words is "forty-three billion, four hundred twenty million, twenty thousand, two hundred one".