420544001233201 has 4 divisors (see below), whose sum is σ = 421001611681600. Its totient is φ = 420086390784804.

The previous prime is 420544001233163. The next prime is 420544001233217. The reversal of 420544001233201 is 102332100445024.

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 420544001233201 - 2⁷ = 420544001233073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420544001233001) 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, 228805222821 + ... + 228805224658.

It is an arithmetic number, because the mean of its divisors is an integer number (105250402920400).

Almost surely, 2^{420544001233201} is an apocalyptic number.

It is an amenable number.

420544001233201 is a deficient number, since it is larger than the sum of its proper divisors (457610448399).

420544001233201 is an equidigital number, since it uses as much as digits as its factorization.

420544001233201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457610448398.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 420544001233201 its reverse (102332100445024), we get a palindrome (522876101678225).

The spelling of 420544001233201 in words is "four hundred twenty trillion, five hundred forty-four billion, one million, two hundred thirty-three thousand, two hundred one".