30423321 has 12 divisors (see below), whose sum is σ = 44381220. Its totient is φ = 20080800.

The previous prime is 30423299. The next prime is 30423359. The reversal of 30423321 is 12332403.

It can be written as a sum of positive squares in 2 ways, for example, as 21206025 + 9217296 = 4605^2 + 3036^2 .

It is not a de Polignac number, because 30423321 - 2⁶ = 30423257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30423294 and 30423303.

It is not an unprimeable number, because it can be changed into a prime (30423391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15826 + ... + 17643.

It is an arithmetic number, because the mean of its divisors is an integer number (3698435).

Almost surely, 2^30423321 is an apocalyptic number.

It is an amenable number.

30423321 is a deficient number, since it is larger than the sum of its proper divisors (13957899).

30423321 is a wasteful number, since it uses less digits than its factorization.

30423321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33576 (or 33573 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30423321 is about 5515.7339493489. The cubic root of 30423321 is about 312.1779372091.

Adding to 30423321 its reverse (12332403), we get a palindrome (42755724).

The spelling of 30423321 in words is "thirty million, four hundred twenty-three thousand, three hundred twenty-one".