111191110000001 has 8 divisors (see below), whose sum is σ = 112762142366400. Its totient is φ = 109620215422480.

The previous prime is 111191109999989. The next prime is 111191110000037. The reversal of 111191110000001 is 100000011191111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111191110000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111191110000051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32821346 + ... + 36050283.

It is an arithmetic number, because the mean of its divisors is an integer number (14095267795800).

Almost surely, 2^{111191110000001} is an apocalyptic number.

It is an amenable number.

111191110000001 is a deficient number, since it is larger than the sum of its proper divisors (1571032366399).

111191110000001 is an equidigital number, since it uses as much as digits as its factorization.

111191110000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68894439.

The product of its (nonzero) digits is 9, while the sum is 17.

Adding to 111191110000001 its reverse (100000011191111), we get a palindrome (211191121191112).

The spelling of 111191110000001 in words is "one hundred eleven trillion, one hundred ninety-one billion, one hundred ten million, one", and thus it is an aban number.