30021320113 has 4 divisors (see below), whose sum is σ = 30145890148. Its totient is φ = 29896750080.

The previous prime is 30021320089. The next prime is 30021320123. The reversal of 30021320113 is 31102312003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14398320049 + 15623000064 = 119993^2 + 124992^2 .

It is a cyclic number.

It is not a de Polignac number, because 30021320113 - 2¹³ = 30021311921 is a prime.

It is a super-2 number, since 2×30021320113² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30021320123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62284656 + ... + 62285137.

It is an arithmetic number, because the mean of its divisors is an integer number (7536472537).

Almost surely, 2^30021320113 is an apocalyptic number.

It is an amenable number.

30021320113 is a deficient number, since it is larger than the sum of its proper divisors (124570035).

30021320113 is a wasteful number, since it uses less digits than its factorization.

30021320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124570034.

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

Adding to 30021320113 its reverse (31102312003), we get a palindrome (61123632116).

The spelling of 30021320113 in words is "thirty billion, twenty-one million, three hundred twenty thousand, one hundred thirteen".