30421304443 has 4 divisors (see below), whose sum is σ = 30422294608. Its totient is φ = 30420314280.

The previous prime is 30421304399. The next prime is 30421304447. The reversal of 30421304443 is 34440312403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30421304443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30421304447) 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, 447471 + ... + 510952.

It is an arithmetic number, because the mean of its divisors is an integer number (7605573652).

Almost surely, 2^30421304443 is an apocalyptic number.

30421304443 is a deficient number, since it is larger than the sum of its proper divisors (990165).

30421304443 is an equidigital number, since it uses as much as digits as its factorization.

30421304443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990164.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 30421304443 its reverse (34440312403), we get a palindrome (64861616846).

The spelling of 30421304443 in words is "thirty billion, four hundred twenty-one million, three hundred four thousand, four hundred forty-three".