30243043021 has 8 divisors (see below), whose sum is σ = 30399264000. Its totient is φ = 30087006432.

The previous prime is 30243043001. The next prime is 30243043057. The reversal of 30243043021 is 12034034203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30243043021 - 2⁵ = 30243042989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30243042983 and 30243043001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243043001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289041 + ... + 379513.

It is an arithmetic number, because the mean of its divisors is an integer number (3799908000).

Almost surely, 2^30243043021 is an apocalyptic number.

It is an amenable number.

30243043021 is a deficient number, since it is larger than the sum of its proper divisors (156220979).

30243043021 is a wasteful number, since it uses less digits than its factorization.

30243043021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92195.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30243043021 its reverse (12034034203), we get a palindrome (42277077224).

The spelling of 30243043021 in words is "thirty billion, two hundred forty-three million, forty-three thousand, twenty-one".