13233111320 has 128 divisors (see below), whose sum is σ = 35724810240. Its totient is φ = 4347287040.

The previous prime is 13233111313. The next prime is 13233111323. The reversal of 13233111320 is 2311133231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13233111292 and 13233111301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233111323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244229 + ... + 293451.

It is an arithmetic number, because the mean of its divisors is an integer number (279100080).

Almost surely, 2^13233111320 is an apocalyptic number.

13233111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13233111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17862405120).

13233111320 is an abundant number, since it is smaller than the sum of its proper divisors (22491698920).

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

13233111320 is a wasteful number, since it uses less digits than its factorization.

13233111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49305 (or 49301 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13233111320 its reverse (2311133231), we get a palindrome (15544244551).

The spelling of 13233111320 in words is "thirteen billion, two hundred thirty-three million, one hundred eleven thousand, three hundred twenty".