30123210000001 has 4 divisors (see below), whose sum is σ = 30123499602772. Its totient is φ = 30122920397232.

The previous prime is 30123209999989. The next prime is 30123210000029. The reversal of 30123210000001 is 10000001232103.

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 21123216000000 + 8999994000001 = 4596000^2 + 2999999^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123210000001 - 2¹¹ = 30123209997953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30123210000071) 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, 144645306 + ... + 144853411.

It is an arithmetic number, because the mean of its divisors is an integer number (7530874900693).

Almost surely, 2^{30123210000001} is an apocalyptic number.

It is an amenable number.

30123210000001 is a deficient number, since it is larger than the sum of its proper divisors (289602771).

30123210000001 is a wasteful number, since it uses less digits than its factorization.

30123210000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289602770.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30123210000001 its reverse (10000001232103), we get a palindrome (40123211232104).

The spelling of 30123210000001 in words is "thirty trillion, one hundred twenty-three billion, two hundred ten million, one", and thus it is an aban number.