13111338 has 16 divisors (see below), whose sum is σ = 26267040. Its totient is φ = 4363056.

The previous prime is 13111333. The next prime is 13111363. The reversal of 13111338 is 83311131.

It is not an unprimeable number, because it can be changed into a prime (13111333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2956 + ... + 5912.

It is an arithmetic number, because the mean of its divisors is an integer number (1641690).

Almost surely, 2^13111338 is an apocalyptic number.

13111338 is an abundant number, since it is smaller than the sum of its proper divisors (13155702).

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

13111338 is a wasteful number, since it uses less digits than its factorization.

13111338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701.

The product of its digits is 216, while the sum is 21.

The square root of 13111338 is about 3620.9581604874. The cubic root of 13111338 is about 235.8028253504.

Adding to 13111338 its reverse (83311131), we get a palindrome (96422469).

The spelling of 13111338 in words is "thirteen million, one hundred eleven thousand, three hundred thirty-eight".