13228571823 has 16 divisors (see below), whose sum is σ = 17910243072. Its totient is φ = 8683304000.

The previous prime is 13228571803. The next prime is 13228571827. The reversal of 13228571823 is 32817582231.

It is a cyclic number.

It is not a de Polignac number, because 13228571823 - 2⁹ = 13228571311 is a prime.

It is a super-2 number, since 2×13228571823² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228571827) 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, 121288 + ... + 202898.

It is an arithmetic number, because the mean of its divisors is an integer number (1119390192).

Almost surely, 2^13228571823 is an apocalyptic number.

13228571823 is a deficient number, since it is larger than the sum of its proper divisors (4681671249).

13228571823 is an equidigital number, since it uses as much as digits as its factorization.

13228571823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82446.

The product of its digits is 161280, while the sum is 42.

The spelling of 13228571823 in words is "thirteen billion, two hundred twenty-eight million, five hundred seventy-one thousand, eight hundred twenty-three".