12975042305 has 4 divisors (see below), whose sum is σ = 15570050772. Its totient is φ = 10380033840.

The previous prime is 12975042287. The next prime is 12975042317. The reversal of 12975042305 is 50324057921.

12975042305 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: 50324057921 = 62687 ⋅802783.

It can be written as a sum of positive squares in 2 ways, for example, as 8649744016 + 4325298289 = 93004^2 + 65767^2 .

It is not a de Polignac number, because 12975042305 - 2¹⁰ = 12975041281 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, 1297504226 + ... + 1297504235.

It is an arithmetic number, because the mean of its divisors is an integer number (3892512693).

Almost surely, 2^12975042305 is an apocalyptic number.

It is an amenable number.

12975042305 is a deficient number, since it is larger than the sum of its proper divisors (2595008467).

12975042305 is an equidigital number, since it uses as much as digits as its factorization.

12975042305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595008466.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 12975042305 in words is "twelve billion, nine hundred seventy-five million, forty-two thousand, three hundred five".