13111842 has 32 divisors (see below), whose sum is σ = 26889408. Its totient is φ = 4261376.

The previous prime is 13111837. The next prime is 13111849. The reversal of 13111842 is 24811131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13111849) 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 15 ways as a sum of consecutive naturals, for example, 56158 + ... + 56390.

It is an arithmetic number, because the mean of its divisors is an integer number (840294).

Almost surely, 2^13111842 is an apocalyptic number.

13111842 is an abundant number, since it is smaller than the sum of its proper divisors (13777566).

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

13111842 is a wasteful number, since it uses less digits than its factorization.

13111842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its digits is 192, while the sum is 21.

The square root of 13111842 is about 3621.0277546575. The cubic root of 13111842 is about 235.8058467329.

Adding to 13111842 its reverse (24811131), we get a palindrome (37922973).

The spelling of 13111842 in words is "thirteen million, one hundred eleven thousand, eight hundred forty-two".