13131123 has 8 divisors (see below), whose sum is σ = 18538128. Its totient is φ = 8239104.

The previous prime is 13131103. The next prime is 13131127. The reversal of 13131123 is 32113131.

13131123 is digitally balanced in base 3, 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 not a de Polignac number, because 13131123 - 2¹² = 13127027 is a prime.

It is a super-2 number, since 2×13131123² = 344852782482258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13131127) 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 7 ways as a sum of consecutive naturals, for example, 128686 + ... + 128787.

It is an arithmetic number, because the mean of its divisors is an integer number (2317266).

Almost surely, 2^13131123 is an apocalyptic number.

13131123 is a deficient number, since it is larger than the sum of its proper divisors (5407005).

13131123 is a wasteful number, since it uses less digits than its factorization.

13131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257493.

The product of its digits is 54, while the sum is 15.

The square root of 13131123 is about 3623.6891422968. The cubic root of 13131123 is about 235.9213745072.

Adding to 13131123 its reverse (32113131), we get a palindrome (45244254).

The spelling of 13131123 in words is "thirteen million, one hundred thirty-one thousand, one hundred twenty-three".