30021123320103 has 4 divisors (see below), whose sum is σ = 40028164426808. Its totient is φ = 20014082213400.

The previous prime is 30021123320063. The next prime is 30021123320131. The reversal of 30021123320103 is 30102332112003.

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

It is not a de Polignac number, because 30021123320103 - 2¹³ = 30021123311911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30021123320103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021123320143) 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, 5003520553348 + ... + 5003520553353.

It is an arithmetic number, because the mean of its divisors is an integer number (10007041106702).

Almost surely, 2^{30021123320103} is an apocalyptic number.

30021123320103 is a deficient number, since it is larger than the sum of its proper divisors (10007041106705).

30021123320103 is a wasteful number, since it uses less digits than its factorization.

30021123320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10007041106704.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30021123320103 its reverse (30102332112003), we get a palindrome (60123455432106).

The spelling of 30021123320103 in words is "thirty trillion, twenty-one billion, one hundred twenty-three million, three hundred twenty thousand, one hundred three".