111042005 has 16 divisors (see below), whose sum is σ = 135717120. Its totient is φ = 87202752.

The previous prime is 111041993. The next prime is 111042017. The reversal of 111042005 is 500240111.

It is an interprime number because it is at equal distance from previous prime (111041993) and next prime (111042017).

It is a cyclic number.

It is not a de Polignac number, because 111042005 - 2⁴ = 111041989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77102 + ... + 78528.

It is an arithmetic number, because the mean of its divisors is an integer number (8482320).

Almost surely, 2^111042005 is an apocalyptic number.

It is an amenable number.

111042005 is a deficient number, since it is larger than the sum of its proper divisors (24675115).

111042005 is a wasteful number, since it uses less digits than its factorization.

111042005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 111042005 is about 10537.6470333751. The cubic root of 111042005 is about 480.6501678399.

Adding to 111042005 its reverse (500240111), we get a palindrome (611282116).

The spelling of 111042005 in words is "one hundred eleven million, forty-two thousand, five".