13233223331 has 4 divisors (see below), whose sum is σ = 13233831000. Its totient is φ = 13232615664.

The previous prime is 13233223279. The next prime is 13233223337. The reversal of 13233223331 is 13332233231.

It is a happy number.

13233223331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13332233231 = 157 ⋅84918683.

It is a cyclic number.

It is not a de Polignac number, because 13233223331 - 2²² = 13229029027 is a prime.

It is a super-2 number, since 2×13233223331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13233223331.

It is not an unprimeable number, because it can be changed into a prime (13233223337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269906 + ... + 315143.

It is an arithmetic number, because the mean of its divisors is an integer number (3308457750).

Almost surely, 2^13233223331 is an apocalyptic number.

13233223331 is a deficient number, since it is larger than the sum of its proper divisors (607669).

13233223331 is an equidigital number, since it uses as much as digits as its factorization.

13233223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607668.

The product of its digits is 5832, while the sum is 26.

Adding to 13233223331 its reverse (13332233231), we get a palindrome (26565456562).

The spelling of 13233223331 in words is "thirteen billion, two hundred thirty-three million, two hundred twenty-three thousand, three hundred thirty-one".