2013033121320 has 128 divisors (see below), whose sum is σ = 6505484711040. Its totient is φ = 495375713280.

The previous prime is 2013033121279. The next prime is 2013033121339. The reversal of 2013033121320 is 231213303102.

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, 5390082 + ... + 5751438.

It is an arithmetic number, because the mean of its divisors is an integer number (50824099305).

Almost surely, 2^{2013033121320} is an apocalyptic number.

2013033121320 is a gapful number since it is divisible by the number (20) 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 2013033121320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3252742355520).

2013033121320 is an abundant number, since it is smaller than the sum of its proper divisors (4492451589720).

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

2013033121320 is a wasteful number, since it uses less digits than its factorization.

2013033121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364955 (or 364951 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2013033121320 its reverse (231213303102), we get a palindrome (2244246424422).

The spelling of 2013033121320 in words is "two trillion, thirteen billion, thirty-three million, one hundred twenty-one thousand, three hundred twenty".