30321013021 has 8 divisors (see below), whose sum is σ = 32654956320. Its totient is φ = 27987292272.

The previous prime is 30321013003. The next prime is 30321013081. The reversal of 30321013021 is 12031012303.

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 30321013021 - 2¹⁵ = 30320980253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30321012986 and 30321013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321013081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322626 + ... + 405868.

It is an arithmetic number, because the mean of its divisors is an integer number (4081869540).

Almost surely, 2^30321013021 is an apocalyptic number.

It is an amenable number.

30321013021 is a deficient number, since it is larger than the sum of its proper divisors (2333943299).

30321013021 is a wasteful number, since it uses less digits than its factorization.

30321013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111275.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30321013021 its reverse (12031012303), we get a palindrome (42352025324).

The spelling of 30321013021 in words is "thirty billion, three hundred twenty-one million, thirteen thousand, twenty-one".