11203112191 has 8 divisors (see below), whose sum is σ = 11218323584. Its totient is φ = 11187914400.

The previous prime is 11203112111. The next prime is 11203112209. The reversal of 11203112191 is 19121130211.

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

It is a cyclic number.

It is not a de Polignac number, because 11203112191 - 2⁹ = 11203111679 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 (11203112111) 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, 4004005 + ... + 4006801.

It is an arithmetic number, because the mean of its divisors is an integer number (1402290448).

Almost surely, 2^11203112191 is an apocalyptic number.

11203112191 is a deficient number, since it is larger than the sum of its proper divisors (15211393).

11203112191 is a wasteful number, since it uses less digits than its factorization.

11203112191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 11203112191 in words is "eleven billion, two hundred three million, one hundred twelve thousand, one hundred ninety-one".