420313321 has 8 divisors (see below), whose sum is σ = 445236480. Its totient is φ = 395412288.

The previous prime is 420313297. The next prime is 420313379. The reversal of 420313321 is 123313024.

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 420313321 - 2¹³ = 420305129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420313391) 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, 49060 + ... + 56986.

It is an arithmetic number, because the mean of its divisors is an integer number (55654560).

Almost surely, 2^420313321 is an apocalyptic number.

It is an amenable number.

420313321 is a deficient number, since it is larger than the sum of its proper divisors (24923159).

420313321 is a wasteful number, since it uses less digits than its factorization.

420313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11063.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 420313321 is about 20501.5443564625. The cubic root of 420313321 is about 749.0734163209.

Adding to 420313321 its reverse (123313024), we get a palindrome (543626345).

The spelling of 420313321 in words is "four hundred twenty million, three hundred thirteen thousand, three hundred twenty-one".