30144123305 has 4 divisors (see below), whose sum is σ = 36172947972. Its totient is φ = 24115298640.

The previous prime is 30144123271. The next prime is 30144123313. The reversal of 30144123305 is 50332144103.

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 4621824256 + 25522299049 = 67984^2 + 159757^2 .

It is not a de Polignac number, because 30144123305 - 2²⁰ = 30143074729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3014412326 + ... + 3014412335.

It is an arithmetic number, because the mean of its divisors is an integer number (9043236993).

Almost surely, 2^30144123305 is an apocalyptic number.

It is an amenable number.

30144123305 is a deficient number, since it is larger than the sum of its proper divisors (6028824667).

30144123305 is an equidigital number, since it uses as much as digits as its factorization.

30144123305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028824666.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 30144123305 its reverse (50332144103), we get a palindrome (80476267408).

The spelling of 30144123305 in words is "thirty billion, one hundred forty-four million, one hundred twenty-three thousand, three hundred five".