111111007 has 4 divisors (see below), whose sum is σ = 126984016. Its totient is φ = 95238000.

The previous prime is 111110969. The next prime is 111111017. The reversal of 111111007 is 700111111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700111111 = 7 ⋅100015873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111111007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7936494 + ... + 7936507.

It is an arithmetic number, because the mean of its divisors is an integer number (31746004).

Almost surely, 2^111111007 is an apocalyptic number.

111111007 is a deficient number, since it is larger than the sum of its proper divisors (15873009).

111111007 is an equidigital number, since it uses as much as digits as its factorization.

111111007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15873008.

The product of its (nonzero) digits is 7, while the sum is 13.

The square root of 111111007 is about 10540.9205954698. The cubic root of 111111007 is about 480.7497066149.

Adding to 111111007 its reverse (700111111), we get a palindrome (811222118).

The spelling of 111111007 in words is "one hundred eleven million, one hundred eleven thousand, seven".