11140251171 has 32 divisors (see below), whose sum is σ = 18445516800. Its totient is φ = 5836263840.

The previous prime is 11140251149. The next prime is 11140251191. The reversal of 11140251171 is 17115204111.

It is a happy number.

It is not a de Polignac number, because 11140251171 - 2⁶ = 11140251107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11140251191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 437961 + ... + 462698.

It is an arithmetic number, because the mean of its divisors is an integer number (576422400).

Almost surely, 2^11140251171 is an apocalyptic number.

11140251171 is a deficient number, since it is larger than the sum of its proper divisors (7305265629).

11140251171 is a wasteful number, since it uses less digits than its factorization.

11140251171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900719.

The product of its (nonzero) digits is 280, while the sum is 24.

Adding to 11140251171 its reverse (17115204111), we get a palindrome (28255455282).

The spelling of 11140251171 in words is "eleven billion, one hundred forty million, two hundred fifty-one thousand, one hundred seventy-one".