13238888233 has 4 divisors (see below), whose sum is σ = 13561787988. Its totient is φ = 12915988480.

The previous prime is 13238888207. The next prime is 13238888237. The reversal of 13238888233 is 33288883231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33288883231 = 113 ⋅294591887.

It can be written as a sum of positive squares in 2 ways, for example, as 2017087744 + 11221800489 = 44912^2 + 105933^2 .

It is a cyclic number.

It is not a de Polignac number, because 13238888233 - 2³³ = 4648953641 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13238888237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161449816 + ... + 161449897.

It is an arithmetic number, because the mean of its divisors is an integer number (3390446997).

Almost surely, 2^13238888233 is an apocalyptic number.

It is an amenable number.

13238888233 is a deficient number, since it is larger than the sum of its proper divisors (322899755).

13238888233 is an equidigital number, since it uses as much as digits as its factorization.

13238888233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322899754.

The product of its digits is 1327104, while the sum is 49.

The spelling of 13238888233 in words is "thirteen billion, two hundred thirty-eight million, eight hundred eighty-eight thousand, two hundred thirty-three".