13320001320 has 64 divisors (see below), whose sum is σ = 40160880000. Its totient is φ = 3534144768.

The previous prime is 13320001273. The next prime is 13320001349. The reversal of 13320001320 is 2310002331.

It is a super-4 number, since 4×13320001320⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13320001320.

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, 255015 + ... + 302774.

It is an arithmetic number, because the mean of its divisors is an integer number (627513750).

Almost surely, 2^13320001320 is an apocalyptic number.

13320001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320001320 is an abundant number, since it is smaller than the sum of its proper divisors (26840878680).

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

13320001320 is a wasteful number, since it uses less digits than its factorization.

13320001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558002 (or 557998 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 13320001320 its reverse (2310002331), we get a palindrome (15630003651).

The spelling of 13320001320 in words is "thirteen billion, three hundred twenty million, one thousand, three hundred twenty".