11523105225 has 48 divisors (see below), whose sum is σ = 22088764800. Its totient is φ = 5878445760.

The previous prime is 11523105193. The next prime is 11523105239. The reversal of 11523105225 is 52250132511.

11523105225 is a `hidden beast` number, since 11 + 523 + 105 + 2 + 25 = 666.

11523105225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11523105225 - 2⁵ = 11523105193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 355590 + ... + 386639.

It is an arithmetic number, because the mean of its divisors is an integer number (460182600).

Almost surely, 2^11523105225 is an apocalyptic number.

11523105225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11523105225 is a deficient number, since it is larger than the sum of its proper divisors (10565659575).

11523105225 is a wasteful number, since it uses less digits than its factorization.

11523105225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742271 (or 742260 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 11523105225 its reverse (52250132511), we get a palindrome (63773237736).

The spelling of 11523105225 in words is "eleven billion, five hundred twenty-three million, one hundred five thousand, two hundred twenty-five".