111142044124111 has 16 divisors (see below), whose sum is σ = 149225681622528. Its totient is φ = 79942329439200.

The previous prime is 111142044124099. The next prime is 111142044124127. The reversal of 111142044124111 is 111421440241111.

It is a cyclic number.

It is not a de Polignac number, because 111142044124111 - 2⁷ = 111142044123983 is a prime.

It is a super-2 number, since 2×111142044124111² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111142044124111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111142044122111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55515505555 + ... + 55515507556.

It is an arithmetic number, because the mean of its divisors is an integer number (9326605101408).

Almost surely, 2^{111142044124111} is an apocalyptic number.

111142044124111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111142044124111 is a deficient number, since it is larger than the sum of its proper divisors (38083637498417).

111142044124111 is a wasteful number, since it uses less digits than its factorization.

111142044124111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111031013142.

The product of its (nonzero) digits is 1024, while the sum is 28.

Adding to 111142044124111 its reverse (111421440241111), we get a palindrome (222563484365222).

The spelling of 111142044124111 in words is "one hundred eleven trillion, one hundred forty-two billion, forty-four million, one hundred twenty-four thousand, one hundred eleven".