111424131 has 48 divisors (see below), whose sum is σ = 203496384. Its totient is φ = 57169152.

The previous prime is 111424127. The next prime is 111424133. The reversal of 111424131 is 131424111.

111424131 is a `hidden beast` number, since 111 + 424 + 131 = 666.

It is not a de Polignac number, because 111424131 - 2² = 111424127 is a prime.

It is a super-2 number, since 2×111424131² = 24830673938210322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111424133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28465 + ... + 32141.

It is an arithmetic number, because the mean of its divisors is an integer number (4239508).

Almost surely, 2^111424131 is an apocalyptic number.

111424131 is a deficient number, since it is larger than the sum of its proper divisors (92072253).

111424131 is a wasteful number, since it uses less digits than its factorization.

111424131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740 (or 3737 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 111424131 is about 10555.7629283723. The cubic root of 111424131 is about 481.2008862905.

Adding to 111424131 its reverse (131424111), we get a palindrome (242848242).

The spelling of 111424131 in words is "one hundred eleven million, four hundred twenty-four thousand, one hundred thirty-one".