13112122125 has 32 divisors (see below), whose sum is σ = 22081497984. Its totient is φ = 6908860800.

The previous prime is 13112122109. The next prime is 13112122157. The reversal of 13112122125 is 52122121131.

It is not a de Polignac number, because 13112122125 - 2⁴ = 13112122109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179512 + ... + 241761.

It is an arithmetic number, because the mean of its divisors is an integer number (690046812).

Almost surely, 2^13112122125 is an apocalyptic number.

13112122125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13112122125 is a deficient number, since it is larger than the sum of its proper divisors (8969375859).

13112122125 is an equidigital number, since it uses as much as digits as its factorization.

13112122125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421374 (or 421364 counting only the distinct ones).

The product of its digits is 240, while the sum is 21.

Adding to 13112122125 its reverse (52122121131), we get a palindrome (65234243256).

The spelling of 13112122125 in words is "thirteen billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty-five".