420042420201 has 4 divisors (see below), whose sum is σ = 560056560272. Its totient is φ = 280028280132.

The previous prime is 420042420131. The next prime is 420042420209. The reversal of 420042420201 is 102024240024.

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 420042420201 - 2⁷ = 420042420073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420042420209) 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, 70007070031 + ... + 70007070036.

It is an arithmetic number, because the mean of its divisors is an integer number (140014140068).

Almost surely, 2^420042420201 is an apocalyptic number.

It is an amenable number.

420042420201 is a deficient number, since it is larger than the sum of its proper divisors (140014140071).

420042420201 is a wasteful number, since it uses less digits than its factorization.

420042420201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140014140070.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 420042420201 its reverse (102024240024), we get a palindrome (522066660225).

The spelling of 420042420201 in words is "four hundred twenty billion, forty-two million, four hundred twenty thousand, two hundred one".