13331233320 has 128 divisors (see below), whose sum is σ = 41788569600. Its totient is φ = 3395867904.

The previous prime is 13331233319. The next prime is 13331233339. The reversal of 13331233320 is 2333213331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2368029 + ... + 2373651.

It is an arithmetic number, because the mean of its divisors is an integer number (326473200).

Almost surely, 2^13331233320 is an apocalyptic number.

13331233320 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 13331233320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20894284800).

13331233320 is an abundant number, since it is smaller than the sum of its proper divisors (28457336280).

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

13331233320 is a wasteful number, since it uses less digits than its factorization.

13331233320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519 (or 6515 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 13331233320 its reverse (2333213331), we get a palindrome (15664446651).

The spelling of 13331233320 in words is "thirteen billion, three hundred thirty-one million, two hundred thirty-three thousand, three hundred twenty".