12542057107 has 4 divisors (see below), whose sum is σ = 12542302656. Its totient is φ = 12541811560.

The previous prime is 12542057093. The next prime is 12542057137. The reversal of 12542057107 is 70175024521.

12542057107 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12542057107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12542057137) 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, 14083 + ... + 159004.

It is an arithmetic number, because the mean of its divisors is an integer number (3135575664).

Almost surely, 2^12542057107 is an apocalyptic number.

12542057107 is a deficient number, since it is larger than the sum of its proper divisors (245549).

12542057107 is an equidigital number, since it uses as much as digits as its factorization.

12542057107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245548.

The product of its (nonzero) digits is 19600, while the sum is 34.

The spelling of 12542057107 in words is "twelve billion, five hundred forty-two million, fifty-seven thousand, one hundred seven".