13112232113 has 4 divisors (see below), whose sum is σ = 13115940720. Its totient is φ = 13108523508.

The previous prime is 13112232109. The next prime is 13112232121. The reversal of 13112232113 is 31123221131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13112232113 - 2² = 13112232109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112232143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848995 + ... + 1856072.

It is an arithmetic number, because the mean of its divisors is an integer number (3278985180).

Almost surely, 2^13112232113 is an apocalyptic number.

It is an amenable number.

13112232113 is a deficient number, since it is larger than the sum of its proper divisors (3708607).

13112232113 is an equidigital number, since it uses as much as digits as its factorization.

13112232113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708606.

The product of its digits is 216, while the sum is 20.

Adding to 13112232113 its reverse (31123221131), we get a palindrome (44235453244).

The spelling of 13112232113 in words is "thirteen billion, one hundred twelve million, two hundred thirty-two thousand, one hundred thirteen".