13220231233 has 8 divisors (see below), whose sum is σ = 14425609536. Its totient is φ = 12015442800.

The previous prime is 13220231209. The next prime is 13220231267. The reversal of 13220231233 is 33213202231.

13220231233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220231233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220231333) 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 7 ways as a sum of consecutive naturals, for example, 99933 + ... + 190858.

It is an arithmetic number, because the mean of its divisors is an integer number (1803201192).

Almost surely, 2^13220231233 is an apocalyptic number.

It is an amenable number.

13220231233 is a deficient number, since it is larger than the sum of its proper divisors (1205378303).

13220231233 is a wasteful number, since it uses less digits than its factorization.

13220231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294935.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13220231233 its reverse (33213202231), we get a palindrome (46433433464).

The spelling of 13220231233 in words is "thirteen billion, two hundred twenty million, two hundred thirty-one thousand, two hundred thirty-three".