321421411 has 4 divisors (see below), whose sum is σ = 321956824. Its totient is φ = 320886000.

The previous prime is 321421357. The next prime is 321421421. The reversal of 321421411 is 114124123.

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 321421411 - 2⁷ = 321421283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321421421) 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, 266805 + ... + 268006.

It is an arithmetic number, because the mean of its divisors is an integer number (80489206).

Almost surely, 2^321421411 is an apocalyptic number.

321421411 is a deficient number, since it is larger than the sum of its proper divisors (535413).

321421411 is an equidigital number, since it uses as much as digits as its factorization.

321421411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535412.

The product of its digits is 192, while the sum is 19.

The square root of 321421411 is about 17928.2294440918. The cubic root of 321421411 is about 685.0016239505.

Adding to 321421411 its reverse (114124123), we get a palindrome (435545534).

The spelling of 321421411 in words is "three hundred twenty-one million, four hundred twenty-one thousand, four hundred eleven".