30311030221 has 8 divisors (see below), whose sum is σ = 31215084800. Its totient is φ = 29411440848.

The previous prime is 30311030219. The next prime is 30311030273. The reversal of 30311030221 is 12203011303.

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 30311030221 - 2¹ = 30311030219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30311030195 and 30311030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311030291) 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, 1102521 + ... + 1129678.

It is an arithmetic number, because the mean of its divisors is an integer number (3901885600).

Almost surely, 2^30311030221 is an apocalyptic number.

It is an amenable number.

30311030221 is a deficient number, since it is larger than the sum of its proper divisors (904054579).

30311030221 is a wasteful number, since it uses less digits than its factorization.

30311030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232603.

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

Adding to 30311030221 its reverse (12203011303), we get a palindrome (42514041524).

The spelling of 30311030221 in words is "thirty billion, three hundred eleven million, thirty thousand, two hundred twenty-one".