11143265172 has 24 divisors (see below), whose sum is σ = 28001025696. Its totient is φ = 3428696928.

The previous prime is 11143265129. The next prime is 11143265191. The reversal of 11143265172 is 27156234111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35715438 + ... + 35715749.

It is an arithmetic number, because the mean of its divisors is an integer number (1166709404).

Almost surely, 2^11143265172 is an apocalyptic number.

11143265172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11143265172 is an abundant number, since it is smaller than the sum of its proper divisors (16857760524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11143265172 is a wasteful number, since it uses less digits than its factorization.

11143265172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71431207 (or 71431205 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

Adding to 11143265172 its reverse (27156234111), we get a palindrome (38299499283).

The spelling of 11143265172 in words is "eleven billion, one hundred forty-three million, two hundred sixty-five thousand, one hundred seventy-two".