421234324323 has 4 divisors (see below), whose sum is σ = 561645765768. Its totient is φ = 280822882880.

The previous prime is 421234324319. The next prime is 421234324327. The reversal of 421234324323 is 323423432124.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (421234324319) and next prime (421234324327).

It is a cyclic number.

It is not a de Polignac number, because 421234324323 - 2² = 421234324319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421234324327) 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, 70205720718 + ... + 70205720723.

It is an arithmetic number, because the mean of its divisors is an integer number (140411441442).

Almost surely, 2^421234324323 is an apocalyptic number.

421234324323 is a deficient number, since it is larger than the sum of its proper divisors (140411441445).

421234324323 is a wasteful number, since it uses less digits than its factorization.

421234324323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140411441444.

The product of its digits is 82944, while the sum is 33.

Adding to 421234324323 its reverse (323423432124), we get a palindrome (744657756447).

The spelling of 421234324323 in words is "four hundred twenty-one billion, two hundred thirty-four million, three hundred twenty-four thousand, three hundred twenty-three".