30213223 has 4 divisors (see below), whose sum is σ = 30224248. Its totient is φ = 30202200.

The previous prime is 30213217. The next prime is 30213247. The reversal of 30213223 is 32231203.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32231203 = 127 ⋅253789.

It is a cyclic number.

It is not a de Polignac number, because 30213223 - 2¹³ = 30205031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30213197 and 30213206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213203) 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, 2140 + ... + 8062.

It is an arithmetic number, because the mean of its divisors is an integer number (7556062).

Almost surely, 2^30213223 is an apocalyptic number.

30213223 is a deficient number, since it is larger than the sum of its proper divisors (11025).

30213223 is an equidigital number, since it uses as much as digits as its factorization.

30213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11024.

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

The square root of 30213223 is about 5496.6556195563. The cubic root of 30213223 is about 311.4576616707.

Adding to 30213223 its reverse (32231203), we get a palindrome (62444426).

The spelling of 30213223 in words is "thirty million, two hundred thirteen thousand, two hundred twenty-three".