111110100001009 has 4 divisors (see below), whose sum is σ = 113820102440100. Its totient is φ = 108400097561920.

The previous prime is 111110100000973. The next prime is 111110100001027. The reversal of 111110100001009 is 900100001011111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54579175123984 + 56530924877025 = 7387772^2 + 7518705^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110100001009 - 2⁷ = 111110100000881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111110100000983 and 111110100001001.

It is not an unprimeable number, because it can be changed into a prime (111110100001079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1355001219484 + ... + 1355001219565.

It is an arithmetic number, because the mean of its divisors is an integer number (28455025610025).

Almost surely, 2^{111110100001009} is an apocalyptic number.

It is an amenable number.

111110100001009 is a deficient number, since it is larger than the sum of its proper divisors (2710002439091).

111110100001009 is an equidigital number, since it uses as much as digits as its factorization.

111110100001009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710002439090.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 111110100001009 in words is "one hundred eleven trillion, one hundred ten billion, one hundred million, one thousand, nine".