13240344020 has 96 divisors (see below), whose sum is σ = 29104137216. Its totient is φ = 5055206400.

The previous prime is 13240343969. The next prime is 13240344041. The reversal of 13240344020 is 2044304231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11153867 + ... + 11155053.

It is an arithmetic number, because the mean of its divisors is an integer number (303168096).

Almost surely, 2^13240344020 is an apocalyptic number.

13240344020 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 13240344020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14552068608).

13240344020 is an abundant number, since it is smaller than the sum of its proper divisors (15863793196).

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

13240344020 is a wasteful number, since it uses less digits than its factorization.

13240344020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 13240344020 its reverse (2044304231), we get a palindrome (15284648251).

The spelling of 13240344020 in words is "thirteen billion, two hundred forty million, three hundred forty-four thousand, twenty".