30221323 has 6 divisors (see below), whose sum is σ = 33218612. Its totient is φ = 27473820.

The previous prime is 30221281. The next prime is 30221351. The reversal of 30221323 is 32312203.

It is a de Polignac number, because none of the positive numbers 2^k-30221323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221297 and 30221306.

It is not an unprimeable number, because it can be changed into a prime (30221123) 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 5 ways as a sum of consecutive naturals, for example, 124761 + ... + 125002.

Almost surely, 2^30221323 is an apocalyptic number.

30221323 is a deficient number, since it is larger than the sum of its proper divisors (2997289).

30221323 is a wasteful number, since it uses less digits than its factorization.

30221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249785 (or 249774 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30221323 is about 5497.3923818480. The cubic root of 30221323 is about 311.4854925495.

Adding to 30221323 its reverse (32312203), we get a palindrome (62533526).

The spelling of 30221323 in words is "thirty million, two hundred twenty-one thousand, three hundred twenty-three".