11243440125 has 24 divisors (see below), whose sum is σ = 20268176760. Its totient is φ = 5996500800.

The previous prime is 11243440111. The next prime is 11243440181. The reversal of 11243440125 is 52104434211.

11243440125 is a `hidden beast` number, since 11 + 243 + 4 + 401 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 237961476 + 11005478649 = 15426^2 + 104907^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11243440125 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4995960 + ... + 4998209.

It is an arithmetic number, because the mean of its divisors is an integer number (844507365).

Almost surely, 2^11243440125 is an apocalyptic number.

11243440125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11243440125 is a deficient number, since it is larger than the sum of its proper divisors (9024736635).

11243440125 is an equidigital number, since it uses as much as digits as its factorization.

11243440125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9994190 (or 9994177 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 11243440125 its reverse (52104434211), we get a palindrome (63347874336).

The spelling of 11243440125 in words is "eleven billion, two hundred forty-three million, four hundred forty thousand, one hundred twenty-five".