13105112125 has 32 divisors (see below), whose sum is σ = 18720089856. Its totient is φ = 8972683200.

The previous prime is 13105112113. The next prime is 13105112129. The reversal of 13105112125 is 52121150131.

It is not a de Polignac number, because 13105112125 - 2¹³ = 13105103933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13105112096 and 13105112105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105112129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 581314 + ... + 603436.

It is an arithmetic number, because the mean of its divisors is an integer number (585002808).

Almost surely, 2^13105112125 is an apocalyptic number.

It is an amenable number.

13105112125 is a deficient number, since it is larger than the sum of its proper divisors (5614977731).

13105112125 is an equidigital number, since it uses as much as digits as its factorization.

13105112125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22822 (or 22812 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 13105112125 its reverse (52121150131), we get a palindrome (65226262256).

The spelling of 13105112125 in words is "thirteen billion, one hundred five million, one hundred twelve thousand, one hundred twenty-five".