421320323 has 8 divisors (see below), whose sum is σ = 436196880. Its totient is φ = 406467040.

The previous prime is 421320313. The next prime is 421320329. The reversal of 421320323 is 323023124.

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 421320323 - 2¹⁸ = 421058179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421320295 and 421320304.

It is not an unprimeable number, because it can be changed into a prime (421320329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36293 + ... + 46473.

It is an arithmetic number, because the mean of its divisors is an integer number (54524610).

Almost surely, 2^421320323 is an apocalyptic number.

421320323 is a deficient number, since it is larger than the sum of its proper divisors (14876557).

421320323 is a wasteful number, since it uses less digits than its factorization.

421320323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11637.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 421320323 is about 20526.0888383540. The cubic root of 421320323 is about 749.6711583572.

Adding to 421320323 its reverse (323023124), we get a palindrome (744343447).

The spelling of 421320323 in words is "four hundred twenty-one million, three hundred twenty thousand, three hundred twenty-three".