421413334423 has 4 divisors (see below), whose sum is σ = 432802884040. Its totient is φ = 410023784808.

The previous prime is 421413334421. The next prime is 421413334427. The reversal of 421413334423 is 324433314124.

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 421413334423 - 2¹ = 421413334421 is a prime.

It is a super-2 number, since 2×421413334423² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421413334421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5694774753 + ... + 5694774826.

It is an arithmetic number, because the mean of its divisors is an integer number (108200721010).

Almost surely, 2^421413334423 is an apocalyptic number.

421413334423 is a deficient number, since it is larger than the sum of its proper divisors (11389549617).

421413334423 is a wasteful number, since it uses less digits than its factorization.

421413334423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11389549616.

The product of its digits is 82944, while the sum is 34.

Adding to 421413334423 its reverse (324433314124), we get a palindrome (745846648547).

The spelling of 421413334423 in words is "four hundred twenty-one billion, four hundred thirteen million, three hundred thirty-four thousand, four hundred twenty-three".