11100191011090 has 8 divisors (see below), whose sum is σ = 19980343819980. Its totient is φ = 4440076404432.

The previous prime is 11100191011027. The next prime is 11100191011097. The reversal of 11100191011090 is 9011019100111.

It can be written as a sum of positive squares in 2 ways, for example, as 10198767989601 + 901423021489 = 3193551^2 + 949433^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11100191011097) 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, 555009550545 + ... + 555009550564.

Almost surely, 2^{11100191011090} is an apocalyptic number.

11100191011090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11100191011090 is a deficient number, since it is larger than the sum of its proper divisors (8880152808890).

11100191011090 is a wasteful number, since it uses less digits than its factorization.

11100191011090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110019101116.

The product of its (nonzero) digits is 81, while the sum is 25.

The spelling of 11100191011090 in words is "eleven trillion, one hundred billion, one hundred ninety-one million, eleven thousand, ninety".