13243330320 has 80 divisors (see below), whose sum is σ = 44786544192. Its totient is φ = 3210503680.

The previous prime is 13243330313. The next prime is 13243330343. The reversal of 13243330320 is 2303334231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 2505567 + ... + 2510846.

Almost surely, 2^13243330320 is an apocalyptic number.

13243330320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13243330320 is an abundant number, since it is smaller than the sum of its proper divisors (31543213872).

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

13243330320 is a wasteful number, since it uses less digits than its factorization.

13243330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016440 (or 5016434 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 13243330320 its reverse (2303334231), we get a palindrome (15546664551).

The spelling of 13243330320 in words is "thirteen billion, two hundred forty-three million, three hundred thirty thousand, three hundred twenty".