420144242303 has 4 divisors (see below), whose sum is σ = 420544000008. Its totient is φ = 419744484600.

The previous prime is 420144242293. The next prime is 420144242339. The reversal of 420144242303 is 303242441024.

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 420144242303 - 2⁸ = 420144242047 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 (420144242363) 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, 199877276 + ... + 199879377.

It is an arithmetic number, because the mean of its divisors is an integer number (105136000002).

Almost surely, 2^420144242303 is an apocalyptic number.

420144242303 is a deficient number, since it is larger than the sum of its proper divisors (399757705).

420144242303 is a wasteful number, since it uses less digits than its factorization.

420144242303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399757704.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 420144242303 its reverse (303242441024), we get a palindrome (723386683327).

The spelling of 420144242303 in words is "four hundred twenty billion, one hundred forty-four million, two hundred forty-two thousand, three hundred three".