12451543113 has 4 divisors (see below), whose sum is σ = 16602057488. Its totient is φ = 8301028740.

The previous prime is 12451543099. The next prime is 12451543123. The reversal of 12451543113 is 31134515421.

12451543113 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12451543113 - 2³⁰ = 11377801289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12451543123) 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, 2075257183 + ... + 2075257188.

It is an arithmetic number, because the mean of its divisors is an integer number (4150514372).

Almost surely, 2^12451543113 is an apocalyptic number.

It is an amenable number.

12451543113 is a deficient number, since it is larger than the sum of its proper divisors (4150514375).

12451543113 is an equidigital number, since it uses as much as digits as its factorization.

12451543113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150514374.

The product of its digits is 7200, while the sum is 30.

The spelling of 12451543113 in words is "twelve billion, four hundred fifty-one million, five hundred forty-three thousand, one hundred thirteen".