13453314520 has 64 divisors (see below), whose sum is σ = 30821472000. Its totient is φ = 5283508608.

The previous prime is 13453314509. The next prime is 13453314521. The reversal of 13453314520 is 2541335431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13453314521) 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, 2165739 + ... + 2171941.

It is an arithmetic number, because the mean of its divisors is an integer number (481585500).

Almost surely, 2^13453314520 is an apocalyptic number.

13453314520 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 13453314520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15410736000).

13453314520 is an abundant number, since it is smaller than the sum of its proper divisors (17368157480).

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

13453314520 is a wasteful number, since it uses less digits than its factorization.

13453314520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7192 (or 7188 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13453314520 its reverse (2541335431), we get a palindrome (15994649951).

The spelling of 13453314520 in words is "thirteen billion, four hundred fifty-three million, three hundred fourteen thousand, five hundred twenty".