13113108 has 54 divisors (see below), whose sum is σ = 34108074. Its totient is φ = 4247712.

The previous prime is 13113091. The next prime is 13113119. The reversal of 13113108 is 80131131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13046544 + 66564 = 3612^2 + 258^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66466 + ... + 66662.

It is an arithmetic number, because the mean of its divisors is an integer number (631631).

Almost surely, 2^13113108 is an apocalyptic number.

13113108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13113108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17054037).

13113108 is an abundant number, since it is smaller than the sum of its proper divisors (20994966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13113108 is a wasteful number, since it uses less digits than its factorization.

13113108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 13113108 is about 3621.2025626855. The cubic root of 13113108 is about 235.8134358165.

Adding to 13113108 its reverse (80131131), we get a palindrome (93244239).

The spelling of 13113108 in words is "thirteen million, one hundred thirteen thousand, one hundred eight".