30020223 has 4 divisors (see below), whose sum is σ = 40026968. Its totient is φ = 20013480.

The previous prime is 30020213. The next prime is 30020227. The reversal of 30020223 is 32202003.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30020223 - 2⁹ = 30019711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30020199 and 30020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020227) 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, 5003368 + ... + 5003373.

It is an arithmetic number, because the mean of its divisors is an integer number (10006742).

Almost surely, 2^30020223 is an apocalyptic number.

30020223 is a deficient number, since it is larger than the sum of its proper divisors (10006745).

30020223 is a wasteful number, since it uses less digits than its factorization.

30020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006744.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30020223 is about 5479.0713629227. The cubic root of 30020223 is about 310.7930544272.

Adding to 30020223 its reverse (32202003), we get a palindrome (62222226).

The spelling of 30020223 in words is "thirty million, twenty thousand, two hundred twenty-three".