421242334403 has 8 divisors (see below), whose sum is σ = 459548650800. Its totient is φ = 382937944480.

The previous prime is 421242334391. The next prime is 421242334441. The reversal of 421242334403 is 304433242124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421242334403 - 2⁶ = 421242334339 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 421242334403.

It is not an unprimeable number, because it can be changed into a prime (421242334453) 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 7 ways as a sum of consecutive naturals, for example, 3800 + ... + 917877.

It is an arithmetic number, because the mean of its divisors is an integer number (57443581350).

Almost surely, 2^421242334403 is an apocalyptic number.

421242334403 is a deficient number, since it is larger than the sum of its proper divisors (38306316397).

421242334403 is a wasteful number, since it uses less digits than its factorization.

421242334403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963237.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 421242334403 its reverse (304433242124), we get a palindrome (725675576527).

The spelling of 421242334403 in words is "four hundred twenty-one billion, two hundred forty-two million, three hundred thirty-four thousand, four hundred three".