13233453220 has 24 divisors (see below), whose sum is σ = 29927964024. Its totient is φ = 4886198016.

The previous prime is 13233453193. The next prime is 13233453221. The reversal of 13233453220 is 2235433231.

It can be written as a sum of positive squares in 4 ways, for example, as 13972644 + 13219480576 = 3738^2 + 114976^2 .

It is not an unprimeable number, because it can be changed into a prime (13233453221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25448689 + ... + 25449208.

It is an arithmetic number, because the mean of its divisors is an integer number (1246998501).

Almost surely, 2^13233453220 is an apocalyptic number.

13233453220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13233453220 is an abundant number, since it is smaller than the sum of its proper divisors (16694510804).

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

13233453220 is a wasteful number, since it uses less digits than its factorization.

13233453220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50897919 (or 50897917 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 13233453220 its reverse (2235433231), we get a palindrome (15468886451).

It can be divided in two parts, 1323 and 3453220, that added together give a palindrome (3454543).

The spelling of 13233453220 in words is "thirteen billion, two hundred thirty-three million, four hundred fifty-three thousand, two hundred twenty".