421323411 has 4 divisors (see below), whose sum is σ = 561764552. Its totient is φ = 280882272.

The previous prime is 421323391. The next prime is 421323433. The reversal of 421323411 is 114323124.

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

It is not a de Polignac number, because 421323411 - 2¹⁹ = 420799123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421323451) 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, 70220566 + ... + 70220571.

It is an arithmetic number, because the mean of its divisors is an integer number (140441138).

Almost surely, 2^421323411 is an apocalyptic number.

421323411 is a deficient number, since it is larger than the sum of its proper divisors (140441141).

421323411 is a wasteful number, since it uses less digits than its factorization.

421323411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140441140.

The product of its digits is 576, while the sum is 21.

The square root of 421323411 is about 20526.1640595607. The cubic root of 421323411 is about 749.6729898843.

Adding to 421323411 its reverse (114323124), we get a palindrome (535646535).

The spelling of 421323411 in words is "four hundred twenty-one million, three hundred twenty-three thousand, four hundred eleven".