1011102112191 has 8 divisors (see below), whose sum is σ = 1348140806320. Its totient is φ = 674065746432.

The previous prime is 1011102112157. The next prime is 1011102112199. The reversal of 1011102112191 is 1912112011101.

It is a happy number.

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

It is not a de Polignac number, because 1011102112191 - 2⁷ = 1011102112063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011102112199) 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, 1306905 + ... + 1931373.

It is an arithmetic number, because the mean of its divisors is an integer number (168517600790).

Almost surely, 2^{1011102112191} is an apocalyptic number.

1011102112191 is a deficient number, since it is larger than the sum of its proper divisors (337038694129).

1011102112191 is an equidigital number, since it uses as much as digits as its factorization.

1011102112191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164185.

The product of its (nonzero) digits is 36, while the sum is 21.

Adding to 1011102112191 its reverse (1912112011101), we get a palindrome (2923214123292).

The spelling of 1011102112191 in words is "one trillion, eleven billion, one hundred two million, one hundred twelve thousand, one hundred ninety-one".