1100112121091 has 4 divisors (see below), whose sum is σ = 1100125838784. Its totient is φ = 1100098403400.

The previous prime is 1100112121079. The next prime is 1100112121109. The reversal of 1100112121091 is 1901212110011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100112121091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100112121001) 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, 6737840 + ... + 6899181.

It is an arithmetic number, because the mean of its divisors is an integer number (275031459696).

Almost surely, 2^{1100112121091} is an apocalyptic number.

1100112121091 is a deficient number, since it is larger than the sum of its proper divisors (13717693).

1100112121091 is an equidigital number, since it uses as much as digits as its factorization.

1100112121091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13717692.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 1100112121091 in words is "one trillion, one hundred billion, one hundred twelve million, one hundred twenty-one thousand, ninety-one".