12456225113 has 4 divisors (see below), whose sum is σ = 12456864420. Its totient is φ = 12455585808.

The previous prime is 12456225109. The next prime is 12456225127. The reversal of 12456225113 is 31152265421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31152265421 = 29 ⋅1074216049.

It can be written as a sum of positive squares in 2 ways, for example, as 1937056144 + 10519168969 = 44012^2 + 102563^2 .

It is a cyclic number.

It is not a de Polignac number, because 12456225113 - 2² = 12456225109 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 12456225113.

It is not an unprimeable number, because it can be changed into a prime (12456215113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289478 + ... + 329711.

It is an arithmetic number, because the mean of its divisors is an integer number (3114216105).

Almost surely, 2^12456225113 is an apocalyptic number.

It is an amenable number.

12456225113 is a deficient number, since it is larger than the sum of its proper divisors (639307).

12456225113 is an equidigital number, since it uses as much as digits as its factorization.

12456225113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639306.

The product of its digits is 14400, while the sum is 32.

The spelling of 12456225113 in words is "twelve billion, four hundred fifty-six million, two hundred twenty-five thousand, one hundred thirteen".