30530023 has 4 divisors (see below), whose sum is σ = 30594240. Its totient is φ = 30465808.

The previous prime is 30530021. The next prime is 30530029. The reversal of 30530023 is 32003503.

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

It is a cyclic number.

It is not a de Polignac number, because 30530023 - 2¹ = 30530021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30529979 and 30530006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530021) 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, 31390 + ... + 32347.

It is an arithmetic number, because the mean of its divisors is an integer number (7648560).

Almost surely, 2^30530023 is an apocalyptic number.

30530023 is a deficient number, since it is larger than the sum of its proper divisors (64217).

30530023 is an equidigital number, since it uses as much as digits as its factorization.

30530023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64216.

The product of its (nonzero) digits is 270, while the sum is 16.

The square root of 30530023 is about 5525.3979947150. The cubic root of 30530023 is about 312.5424727338.

Adding to 30530023 its reverse (32003503), we get a palindrome (62533526).

The spelling of 30530023 in words is "thirty million, five hundred thirty thousand, twenty-three".