111443142005 has 16 divisors (see below), whose sum is σ = 144031649664. Its totient is φ = 82289148480.

The previous prime is 111443141969. The next prime is 111443142037. The reversal of 111443142005 is 500241344111.

It is not a de Polignac number, because 111443142005 - 2⁶ = 111443141941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723512 + ... + 863918.

It is an arithmetic number, because the mean of its divisors is an integer number (9001978104).

Almost surely, 2^111443142005 is an apocalyptic number.

It is an amenable number.

111443142005 is a deficient number, since it is larger than the sum of its proper divisors (32588507659).

111443142005 is a wasteful number, since it uses less digits than its factorization.

111443142005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152636.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 111443142005 its reverse (500241344111), we get a palindrome (611684486116).

The spelling of 111443142005 in words is "one hundred eleven billion, four hundred forty-three million, one hundred forty-two thousand, five".