13113232121 has 8 divisors (see below), whose sum is σ = 14927315904. Its totient is φ = 11402810320.

The previous prime is 13113232091. The next prime is 13113232157. The reversal of 13113232121 is 12123231131.

It is a happy number.

13113232121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13113232121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13113232093 and 13113232102.

It is not an unprimeable number, because it can be changed into a prime (13113232721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25915226 + ... + 25915731.

It is an arithmetic number, because the mean of its divisors is an integer number (1865914488).

Almost surely, 2^13113232121 is an apocalyptic number.

13113232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13113232121 is a deficient number, since it is larger than the sum of its proper divisors (1814083783).

13113232121 is a wasteful number, since it uses less digits than its factorization.

13113232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51830991.

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

Adding to 13113232121 its reverse (12123231131), we get a palindrome (25236463252).

The spelling of 13113232121 in words is "thirteen billion, one hundred thirteen million, two hundred thirty-two thousand, one hundred twenty-one".