11141171911 has 4 divisors (see below), whose sum is σ = 11727549400. Its totient is φ = 10554794424.

The previous prime is 11141171897. The next prime is 11141171959. The reversal of 11141171911 is 11917114111.

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

It is not a de Polignac number, because 11141171911 - 2²⁹ = 10604300999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11141171911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11141171311) 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, 293188716 + ... + 293188753.

It is an arithmetic number, because the mean of its divisors is an integer number (2931887350).

Almost surely, 2^11141171911 is an apocalyptic number.

11141171911 is a deficient number, since it is larger than the sum of its proper divisors (586377489).

11141171911 is an equidigital number, since it uses as much as digits as its factorization.

11141171911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586377488.

The product of its digits is 252, while the sum is 28.

The spelling of 11141171911 in words is "eleven billion, one hundred forty-one million, one hundred seventy-one thousand, nine hundred eleven".