30221032320133 has 8 divisors (see below), whose sum is σ = 30475071044600. Its totient is φ = 29967950427840.

The previous prime is 30221032320121. The next prime is 30221032320139. The reversal of 30221032320133 is 33102323012203.

It can be written as a sum of positive squares in 4 ways, for example, as 1039190631649 + 29181841688484 = 1019407^2 + 5402022^2 .

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-30221032320133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221032320098 and 30221032320107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221032320139) 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, 239144610 + ... + 239270947.

It is an arithmetic number, because the mean of its divisors is an integer number (3809383880575).

Almost surely, 2^{30221032320133} is an apocalyptic number.

It is an amenable number.

30221032320133 is a deficient number, since it is larger than the sum of its proper divisors (254038724467).

30221032320133 is a wasteful number, since it uses less digits than its factorization.

30221032320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478416087.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 30221032320133 its reverse (33102323012203), we get a palindrome (63323355332336).

The spelling of 30221032320133 in words is "thirty trillion, two hundred twenty-one billion, thirty-two million, three hundred twenty thousand, one hundred thirty-three".