1101111001109 has 4 divisors (see below), whose sum is σ = 1258412572704. Its totient is φ = 943809429516.

The previous prime is 1101111001099. The next prime is 1101111001139. The reversal of 1101111001109 is 9011001111011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1101111001109 - 2⁴ = 1101111001093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101111001139) 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, 78650785787 + ... + 78650785800.

It is an arithmetic number, because the mean of its divisors is an integer number (314603143176).

Almost surely, 2^{1101111001109} is an apocalyptic number.

It is an amenable number.

1101111001109 is a deficient number, since it is larger than the sum of its proper divisors (157301571595).

1101111001109 is an equidigital number, since it uses as much as digits as its factorization.

1101111001109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157301571594.

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

The spelling of 1101111001109 in words is "one trillion, one hundred one billion, one hundred eleven million, one thousand, one hundred nine".