30201030110021 has 4 divisors (see below), whose sum is σ = 30201810275052. Its totient is φ = 30200249944992.

The previous prime is 30201030109979. The next prime is 30201030110039. The reversal of 30201030110021 is 12001103010203.

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 11101464316996 + 19099565793025 = 3331886^2 + 4370305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30201030110021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30201030109978 and 30201030110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201030110521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390024446 + ... + 390101871.

It is an arithmetic number, because the mean of its divisors is an integer number (7550452568763).

Almost surely, 2^{30201030110021} is an apocalyptic number.

It is an amenable number.

30201030110021 is a deficient number, since it is larger than the sum of its proper divisors (780165031).

30201030110021 is an equidigital number, since it uses as much as digits as its factorization.

30201030110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780165030.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30201030110021 its reverse (12001103010203), we get a palindrome (42202133120224).

The spelling of 30201030110021 in words is "thirty trillion, two hundred one billion, thirty million, one hundred ten thousand, twenty-one".