13113121 has 8 divisors (see below), whose sum is σ = 15095360. Its totient is φ = 11158128.

The previous prime is 13113119. The next prime is 13113127. The reversal of 13113121 is 12131131.

13113121 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 a cyclic number.

It is not a de Polignac number, because 13113121 - 2¹ = 13113119 is a prime.

It is a super-3 number, since 3×13113121³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13113127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5766 + ... + 7711.

It is an arithmetic number, because the mean of its divisors is an integer number (1886920).

Almost surely, 2^13113121 is an apocalyptic number.

It is an amenable number.

13113121 is a deficient number, since it is larger than the sum of its proper divisors (1982239).

13113121 is a wasteful number, since it uses less digits than its factorization.

13113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13623.

The product of its digits is 18, while the sum is 13.

The square root of 13113121 is about 3621.2043576689. The cubic root of 13113121 is about 235.8135137429.

Adding to 13113121 its reverse (12131131), we get a palindrome (25244252).

The spelling of 13113121 in words is "thirteen million, one hundred thirteen thousand, one hundred twenty-one".