30021301421 has 8 divisors (see below), whose sum is σ = 30179232864. Its totient is φ = 29863426320.

The previous prime is 30021301391. The next prime is 30021301423. The reversal of 30021301421 is 12410312003.

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-30021301421 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 30021301421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021301423) 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, 1449686 + ... + 1470248.

It is an arithmetic number, because the mean of its divisors is an integer number (3772404108).

Almost surely, 2^30021301421 is an apocalyptic number.

It is an amenable number.

30021301421 is a deficient number, since it is larger than the sum of its proper divisors (157931443).

30021301421 is a wasteful number, since it uses less digits than its factorization.

30021301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28171.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30021301421 its reverse (12410312003), we get a palindrome (42431613424).

The spelling of 30021301421 in words is "thirty billion, twenty-one million, three hundred one thousand, four hundred twenty-one".