13233432320 has 72 divisors (see below), whose sum is σ = 32435508336. Its totient is φ = 5170249728.

The previous prime is 13233432307. The next prime is 13233432323. The reversal of 13233432320 is 2323433231.

It is a self number, because there is not a number n which added to its sum of digits gives 13233432320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233432323) 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, 65177 + ... + 175256.

Almost surely, 2^13233432320 is an apocalyptic number.

13233432320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13233432320 is an abundant number, since it is smaller than the sum of its proper divisors (19202076016).

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

13233432320 is an equidigital number, since it uses as much as digits as its factorization.

13233432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240497 (or 240483 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 13233432320 its reverse (2323433231), we get a palindrome (15556865551).

The spelling of 13233432320 in words is "thirteen billion, two hundred thirty-three million, four hundred thirty-two thousand, three hundred twenty".