421342323 has 4 divisors (see below), whose sum is σ = 561789768. Its totient is φ = 280894880.

The previous prime is 421342303. The next prime is 421342333. The reversal of 421342323 is 323243124.

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 421342323 - 2¹⁰ = 421341299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421342293 and 421342302.

It is not an unprimeable number, because it can be changed into a prime (421342303) 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, 70223718 + ... + 70223723.

It is an arithmetic number, because the mean of its divisors is an integer number (140447442).

Almost surely, 2^421342323 is an apocalyptic number.

421342323 is a deficient number, since it is larger than the sum of its proper divisors (140447445).

421342323 is a wasteful number, since it uses less digits than its factorization.

421342323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140447444.

The product of its digits is 3456, while the sum is 24.

The square root of 421342323 is about 20526.6247347195. The cubic root of 421342323 is about 749.6842066069.

Adding to 421342323 its reverse (323243124), we get a palindrome (744585447).

The spelling of 421342323 in words is "four hundred twenty-one million, three hundred forty-two thousand, three hundred twenty-three".