30230521 has 4 divisors (see below), whose sum is σ = 30252544. Its totient is φ = 30208500.

The previous prime is 30230513. The next prime is 30230527. The reversal of 30230521 is 12503203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30230521 - 2³ = 30230513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30230495 and 30230504.

It is not an unprimeable number, because it can be changed into a prime (30230527) 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, 8805 + ... + 11746.

It is an arithmetic number, because the mean of its divisors is an integer number (7563136).

Almost surely, 2^30230521 is an apocalyptic number.

It is an amenable number.

30230521 is a deficient number, since it is larger than the sum of its proper divisors (22023).

30230521 is a wasteful number, since it uses less digits than its factorization.

30230521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22022.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30230521 is about 5498.2288966539. The cubic root of 30230521 is about 311.5170900295.

Adding to 30230521 its reverse (12503203), we get a palindrome (42733724).

The spelling of 30230521 in words is "thirty million, two hundred thirty thousand, five hundred twenty-one".