13171123 has 16 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 10613376.

The previous prime is 13171121. The next prime is 13171129. The reversal of 13171123 is 32117131.

It is a cyclic number.

It is not a de Polignac number, because 13171123 - 2¹ = 13171121 is a prime.

It is a super-2 number, since 2×13171123² = 346956962162258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 13171123.

It is not an unprimeable number, because it can be changed into a prime (13171121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21915 + ... + 22507.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^13171123 is an apocalyptic number.

13171123 is a deficient number, since it is larger than the sum of its proper divisors (2795597).

13171123 is a wasteful number, since it uses less digits than its factorization.

13171123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its digits is 126, while the sum is 19.

The square root of 13171123 is about 3629.2041827376. The cubic root of 13171123 is about 236.1606860773.

Adding to 13171123 its reverse (32117131), we get a palindrome (45288254).

The spelling of 13171123 in words is "thirteen million, one hundred seventy-one thousand, one hundred twenty-three".