13143111 has 8 divisors (see below), whose sum is σ = 17685360. Its totient is φ = 8681472.

The previous prime is 13143089. The next prime is 13143149. The reversal of 13143111 is 11134131.

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

It is not a de Polignac number, because 13143111 - 2⁹ = 13142599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143211) 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, 19770 + ... + 20423.

It is an arithmetic number, because the mean of its divisors is an integer number (2210670).

Almost surely, 2^13143111 is an apocalyptic number.

13143111 is a deficient number, since it is larger than the sum of its proper divisors (4542249).

13143111 is a wasteful number, since it uses less digits than its factorization.

13143111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40305.

The product of its digits is 36, while the sum is 15.

The square root of 13143111 is about 3625.3428803356. The cubic root of 13143111 is about 235.9931471246.

Adding to 13143111 its reverse (11134131), we get a palindrome (24277242).

The spelling of 13143111 in words is "thirteen million, one hundred forty-three thousand, one hundred eleven".