13228566143 has 32 divisors (see below), whose sum is σ = 14665577472. Its totient is φ = 11858112000.

The previous prime is 13228566119. The next prime is 13228566179. The reversal of 13228566143 is 34166582231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13228566143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13228566143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228566103) 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, 32988743 + ... + 32989143.

It is an arithmetic number, because the mean of its divisors is an integer number (458299296).

Almost surely, 2^13228566143 is an apocalyptic number.

13228566143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13228566143 is a deficient number, since it is larger than the sum of its proper divisors (1437011329).

13228566143 is a wasteful number, since it uses less digits than its factorization.

13228566143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its digits is 207360, while the sum is 41.

The spelling of 13228566143 in words is "thirteen billion, two hundred twenty-eight million, five hundred sixty-six thousand, one hundred forty-three".