12115425113 has 4 divisors (see below), whose sum is σ = 13216827408. Its totient is φ = 11014022820.

The previous prime is 12115425097. The next prime is 12115425181. The reversal of 12115425113 is 31152451121.

12115425113 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 a cyclic number.

It is not a de Polignac number, because 12115425113 - 2⁴ = 12115425097 is a prime.

It is a super-2 number, since 2×12115425113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12115425313) 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, 550701131 + ... + 550701152.

It is an arithmetic number, because the mean of its divisors is an integer number (3304206852).

Almost surely, 2^12115425113 is an apocalyptic number.

It is an amenable number.

12115425113 is a deficient number, since it is larger than the sum of its proper divisors (1101402295).

12115425113 is a wasteful number, since it uses less digits than its factorization.

12115425113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101402294.

The product of its digits is 1200, while the sum is 26.

Adding to 12115425113 its reverse (31152451121), we get a palindrome (43267876234).

The spelling of 12115425113 in words is "twelve billion, one hundred fifteen million, four hundred twenty-five thousand, one hundred thirteen".