30444134221 has 8 divisors (see below), whose sum is σ = 31171970304. Its totient is φ = 29724340800.

The previous prime is 30444134209. The next prime is 30444134251. The reversal of 30444134221 is 12243144403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30444134221 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 30444134221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30444134251) 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, 2003005 + ... + 2018146.

It is an arithmetic number, because the mean of its divisors is an integer number (3896496288).

Almost surely, 2^30444134221 is an apocalyptic number.

It is an amenable number.

30444134221 is a deficient number, since it is larger than the sum of its proper divisors (727836083).

30444134221 is a wasteful number, since it uses less digits than its factorization.

30444134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021331.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 30444134221 its reverse (12243144403), we get a palindrome (42687278624).

The spelling of 30444134221 in words is "thirty billion, four hundred forty-four million, one hundred thirty-four thousand, two hundred twenty-one".