13233221328 has 40 divisors (see below), whose sum is σ = 36196754688. Its totient is φ = 4151598592.

The previous prime is 13233221279. The next prime is 13233221371. The reversal of 13233221328 is 82312233231.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13233221295 and 13233221304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8107776 + ... + 8109407.

Almost surely, 2^13233221328 is an apocalyptic number.

It is an amenable number.

13233221328 is an abundant number, since it is smaller than the sum of its proper divisors (22963533360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13233221328 is a wasteful number, since it uses less digits than its factorization.

13233221328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16217211 (or 16217205 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

Adding to 13233221328 its reverse (82312233231), we get a palindrome (95545454559).

The spelling of 13233221328 in words is "thirteen billion, two hundred thirty-three million, two hundred twenty-one thousand, three hundred twenty-eight".