13043040012320 has 96 divisors (see below), whose sum is σ = 30984402185856. Its totient is φ = 5188474368000.

The previous prime is 13043040012271. The next prime is 13043040012329. The reversal of 13043040012320 is 2321004034031.

It is not an unprimeable number, because it can be changed into a prime (13043040012329) 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, 20929877 + ... + 21544043.

It is an arithmetic number, because the mean of its divisors is an integer number (322754189436).

Almost surely, 2^{13043040012320} is an apocalyptic number.

13043040012320 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 13043040012320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15492201092928).

13043040012320 is an abundant number, since it is smaller than the sum of its proper divisors (17941362173536).

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

13043040012320 is a wasteful number, since it uses less digits than its factorization.

13043040012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614914 (or 614906 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13043040012320 its reverse (2321004034031), we get a palindrome (15364044046351).

The spelling of 13043040012320 in words is "thirteen trillion, forty-three billion, forty million, twelve thousand, three hundred twenty".