30230233021 has 4 divisors (see below), whose sum is σ = 30232368544. Its totient is φ = 30228097500.

The previous prime is 30230232941. The next prime is 30230233027. The reversal of 30230233021 is 12033203203.

It is a happy number.

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 30230233021 - 2¹¹ = 30230230973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30230233021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230233027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046385 + ... + 1074886.

It is an arithmetic number, because the mean of its divisors is an integer number (7558092136).

Almost surely, 2^30230233021 is an apocalyptic number.

It is an amenable number.

30230233021 is a deficient number, since it is larger than the sum of its proper divisors (2135523).

30230233021 is a wasteful number, since it uses less digits than its factorization.

30230233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135522.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30230233021 its reverse (12033203203), we get a palindrome (42263436224).

The spelling of 30230233021 in words is "thirty billion, two hundred thirty million, two hundred thirty-three thousand, twenty-one".