13111424 has 16 divisors (see below), whose sum is σ = 26120670. Its totient is φ = 6555648.

The previous prime is 13111411. The next prime is 13111429. The reversal of 13111424 is 42411131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 3125824 = 3160^2 + 1768^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (13111429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51089 + ... + 51344.

Almost surely, 2^13111424 is an apocalyptic number.

It is an amenable number.

13111424 is a deficient number, since it is larger than the sum of its proper divisors (13009246).

13111424 is an equidigital number, since it uses as much as digits as its factorization.

13111424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102447 (or 102435 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 13111424 is about 3620.9700357777. The cubic root of 13111424 is about 235.8033409093.

Adding to 13111424 its reverse (42411131), we get a palindrome (55522555).

The spelling of 13111424 in words is "thirteen million, one hundred eleven thousand, four hundred twenty-four".