111111006005 has 8 divisors (see below), whose sum is σ = 133622436024. Its totient is φ = 88695985600.

The previous prime is 111111005989. The next prime is 111111006011. The reversal of 111111006005 is 500600111111.

It can be written as a sum of positive squares in 4 ways, for example, as 15541611556 + 95569394449 = 124666^2 + 309143^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111111006005 - 2⁴ = 111111005989 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 7 ways as a sum of consecutive naturals, for example, 24099866 + ... + 24104475.

It is an arithmetic number, because the mean of its divisors is an integer number (16702804503).

Almost surely, 2^111111006005 is an apocalyptic number.

It is an amenable number.

111111006005 is a deficient number, since it is larger than the sum of its proper divisors (22511430019).

111111006005 is an equidigital number, since it uses as much as digits as its factorization.

111111006005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48204807.

The product of its (nonzero) digits is 30, while the sum is 17.

Adding to 111111006005 its reverse (500600111111), we get a palindrome (611711117116).

The spelling of 111111006005 in words is "one hundred eleven billion, one hundred eleven million, six thousand, five".