321301421 has 8 divisors (see below), whose sum is σ = 383167104. Its totient is φ = 263427120.

The previous prime is 321301417. The next prime is 321301429. The reversal of 321301421 is 124103123.

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 321301421 - 2² = 321301417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321301421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321301429) 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, 997670 + ... + 997991.

It is an arithmetic number, because the mean of its divisors is an integer number (47895888).

Almost surely, 2^321301421 is an apocalyptic number.

It is an amenable number.

321301421 is a deficient number, since it is larger than the sum of its proper divisors (61865683).

321301421 is a wasteful number, since it uses less digits than its factorization.

321301421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995691.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 321301421 is about 17924.8827332287. The cubic root of 321301421 is about 684.9163738997.

Adding to 321301421 its reverse (124103123), we get a palindrome (445404544).

The spelling of 321301421 in words is "three hundred twenty-one million, three hundred one thousand, four hundred twenty-one".