12303504139 has 4 divisors (see below), whose sum is σ = 12305785024. Its totient is φ = 12301223256.

The previous prime is 12303504119. The next prime is 12303504209. The reversal of 12303504139 is 93140530321.

12303504139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93140530321 = 647 ⋅143957543.

It is a cyclic number.

It is not a de Polignac number, because 12303504139 - 2⁹ = 12303503627 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 12303504139.

It is not an unprimeable number, because it can be changed into a prime (12303504119) by changing a digit.

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, 1132332 + ... + 1143145.

It is an arithmetic number, because the mean of its divisors is an integer number (3076446256).

Almost surely, 2^12303504139 is an apocalyptic number.

12303504139 is a deficient number, since it is larger than the sum of its proper divisors (2280885).

12303504139 is an equidigital number, since it uses as much as digits as its factorization.

12303504139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280884.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 12303504139 in words is "twelve billion, three hundred three million, five hundred four thousand, one hundred thirty-nine".