305312503023145 has 16 divisors (see below), whose sum is σ = 366544514810880. Its totient is φ = 244136998479744.

The previous prime is 305312503023127. The next prime is 305312503023149. The reversal of 305312503023145 is 541320305213503.

It is a cyclic number.

It is not a de Polignac number, because 305312503023145 - 2⁵ = 305312503023113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305312503023149) 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 15 ways as a sum of consecutive naturals, for example, 843216714 + ... + 843578716.

It is an arithmetic number, because the mean of its divisors is an integer number (22909032175680).

Almost surely, 2^{305312503023145} is an apocalyptic number.

It is an amenable number.

305312503023145 is a deficient number, since it is larger than the sum of its proper divisors (61232011787735).

305312503023145 is a wasteful number, since it uses less digits than its factorization.

305312503023145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439584.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 305312503023145 its reverse (541320305213503), we get a palindrome (846632808236648).

The spelling of 305312503023145 in words is "three hundred five trillion, three hundred twelve billion, five hundred three million, twenty-three thousand, one hundred forty-five".