13111125 has 16 divisors (see below), whose sum is σ = 21817536. Its totient is φ = 6992400.

The previous prime is 13111117. The next prime is 13111129. The reversal of 13111125 is 52111131.

It is not a de Polignac number, because 13111125 - 2³ = 13111117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17107 + ... + 17856.

It is an arithmetic number, because the mean of its divisors is an integer number (1363596).

Almost surely, 2^13111125 is an apocalyptic number.

13111125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13111125 is a deficient number, since it is larger than the sum of its proper divisors (8706411).

13111125 is an equidigital number, since it uses as much as digits as its factorization.

13111125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34981 (or 34971 counting only the distinct ones).

The product of its digits is 30, while the sum is 15.

The square root of 13111125 is about 3620.9287482634. The cubic root of 13111125 is about 235.8015484334.

Adding to 13111125 its reverse (52111131), we get a palindrome (65222256).

The spelling of 13111125 in words is "thirteen million, one hundred eleven thousand, one hundred twenty-five".