420242213040223 has 4 divisors (see below), whose sum is σ = 480276814903120. Its totient is φ = 360207611177328.

The previous prime is 420242213040211. The next prime is 420242213040227. The reversal of 420242213040223 is 322040312242024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420242213040223 - 2¹⁷ = 420242212909151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420242213040227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30017300931438 + ... + 30017300931451.

It is an arithmetic number, because the mean of its divisors is an integer number (120069203725780).

Almost surely, 2^{420242213040223} is an apocalyptic number.

420242213040223 is a deficient number, since it is larger than the sum of its proper divisors (60034601862897).

420242213040223 is an equidigital number, since it uses as much as digits as its factorization.

420242213040223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60034601862896.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 420242213040223 its reverse (322040312242024), we get a palindrome (742282525282247).

The spelling of 420242213040223 in words is "four hundred twenty trillion, two hundred forty-two billion, two hundred thirteen million, forty thousand, two hundred twenty-three".