30300021020021 has 8 divisors (see below), whose sum is σ = 30477134467800. Its totient is φ = 30123394818048.

The previous prime is 30300021019997. The next prime is 30300021020069. The reversal of 30300021020021 is 12002012000303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3720118995121 + 26579902024900 = 1928761^2 + 5155570^2 .

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-30300021020021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30300021019978 and 30300021020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30300021020921) 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, 121686716 + ... + 121935461.

It is an arithmetic number, because the mean of its divisors is an integer number (3809641808475).

Almost surely, 2^{30300021020021} is an apocalyptic number.

It is an amenable number.

30300021020021 is a deficient number, since it is larger than the sum of its proper divisors (177113447779).

30300021020021 is a wasteful number, since it uses less digits than its factorization.

30300021020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243622903.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30300021020021 its reverse (12002012000303), we get a palindrome (42302033020324).

The spelling of 30300021020021 in words is "thirty trillion, three hundred billion, twenty-one million, twenty thousand, twenty-one".