420230455403 has 4 divisors (see below), whose sum is σ = 458433224088. Its totient is φ = 382027686720.

The previous prime is 420230455361. The next prime is 420230455409. The reversal of 420230455403 is 304554032024.

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 420230455403 - 2¹⁶ = 420230389867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420230455403.

It is not an unprimeable number, because it can be changed into a prime (420230455409) 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, 19101384326 + ... + 19101384347.

It is an arithmetic number, because the mean of its divisors is an integer number (114608306022).

Almost surely, 2^420230455403 is an apocalyptic number.

420230455403 is a deficient number, since it is larger than the sum of its proper divisors (38202768685).

420230455403 is a wasteful number, since it uses less digits than its factorization.

420230455403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38202768684.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 420230455403 its reverse (304554032024), we get a palindrome (724784487427).

The spelling of 420230455403 in words is "four hundred twenty billion, two hundred thirty million, four hundred fifty-five thousand, four hundred three".