420531322201 has 4 divisors (see below), whose sum is σ = 420559884304. Its totient is φ = 420502760100.

The previous prime is 420531322187. The next prime is 420531322223. The reversal of 420531322201 is 102223135024.

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 a cyclic number.

It is not a de Polignac number, because 420531322201 - 2³⁷ = 283092368729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420531322231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14258955 + ... + 14288416.

It is an arithmetic number, because the mean of its divisors is an integer number (105139971076).

Almost surely, 2^420531322201 is an apocalyptic number.

It is an amenable number.

420531322201 is a deficient number, since it is larger than the sum of its proper divisors (28562103).

420531322201 is a wasteful number, since it uses less digits than its factorization.

420531322201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28562102.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 420531322201 its reverse (102223135024), we get a palindrome (522754457225).

The spelling of 420531322201 in words is "four hundred twenty billion, five hundred thirty-one million, three hundred twenty-two thousand, two hundred one".