30321023010221 has 4 divisors (see below), whose sum is σ = 30321040399200. Its totient is φ = 30321005621244.

The previous prime is 30321023010199. The next prime is 30321023010269. The reversal of 30321023010221 is 12201032012303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30321023010221 - 2⁴² = 25922976499117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30321023010193 and 30321023010202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321023010521) 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, 5745551 + ... + 9677468.

It is an arithmetic number, because the mean of its divisors is an integer number (7580260099800).

Almost surely, 2^{30321023010221} is an apocalyptic number.

It is an amenable number.

30321023010221 is a deficient number, since it is larger than the sum of its proper divisors (17388979).

30321023010221 is a wasteful number, since it uses less digits than its factorization.

30321023010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17388978.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30321023010221 its reverse (12201032012303), we get a palindrome (42522055022524).

The spelling of 30321023010221 in words is "thirty trillion, three hundred twenty-one billion, twenty-three million, ten thousand, two hundred twenty-one".