13443513001220 has 48 divisors (see below), whose sum is σ = 28256250859200. Its totient is φ = 5372668329600.

The previous prime is 13443513001213. The next prime is 13443513001229. The reversal of 13443513001220 is 2210031534431.

It is not an unprimeable number, because it can be changed into a prime (13443513001229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285650051 + ... + 285697109.

It is an arithmetic number, because the mean of its divisors is an integer number (588671892900).

Almost surely, 2^{13443513001220} is an apocalyptic number.

13443513001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13443513001220 is an abundant number, since it is smaller than the sum of its proper divisors (14812737857980).

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

13443513001220 is a wasteful number, since it uses less digits than its factorization.

13443513001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59348 (or 59346 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 13443513001220 its reverse (2210031534431), we get a palindrome (15653544535651).

The spelling of 13443513001220 in words is "thirteen trillion, four hundred forty-three billion, five hundred thirteen million, one thousand, two hundred twenty".