12115525028 has 48 divisors (see below), whose sum is σ = 23573975040. Its totient is φ = 5424602400.

The previous prime is 12115525027. The next prime is 12115525049. The reversal of 12115525028 is 82052551121.

It is a junction number, because it is equal to n+sod(n) for n = 12115524985 and 12115525003.

It is not an unprimeable number, because it can be changed into a prime (12115525027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41513 + ... + 161103.

It is an arithmetic number, because the mean of its divisors is an integer number (491124480).

Almost surely, 2^12115525028 is an apocalyptic number.

It is an amenable number.

12115525028 is a deficient number, since it is larger than the sum of its proper divisors (11458450012).

12115525028 is a wasteful number, since it uses less digits than its factorization.

12115525028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119688 (or 119686 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 32.

The spelling of 12115525028 in words is "twelve billion, one hundred fifteen million, five hundred twenty-five thousand, twenty-eight".