12511125045441 has 64 divisors (see below), whose sum is σ = 20988742348800. Its totient is φ = 7299511214400.

The previous prime is 12511125045407. The next prime is 12511125045521. The reversal of 12511125045441 is 14454052111521.

12511125045441 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 112 + 50 + 454 + 41 = 666.

It is not a de Polignac number, because 12511125045441 - 2²³ = 12511116656833 is a prime.

It is a super-2 number, since 2×12511125045441² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12511125045396 and 12511125045405.

It is not an unprimeable number, because it can be changed into a prime (12511125040441) 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 63 ways as a sum of consecutive naturals, for example, 6495031 + ... + 8198028.

It is an arithmetic number, because the mean of its divisors is an integer number (327949099200).

Almost surely, 2^{12511125045441} is an apocalyptic number.

12511125045441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12511125045441 is a deficient number, since it is larger than the sum of its proper divisors (8477617303359).

12511125045441 is a wasteful number, since it uses less digits than its factorization.

12511125045441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14693187 (or 14693181 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

Adding to 12511125045441 its reverse (14454052111521), we get a palindrome (26965177156962).

The spelling of 12511125045441 in words is "twelve trillion, five hundred eleven billion, one hundred twenty-five million, forty-five thousand, four hundred forty-one".