13215240303240 has 128 divisors (see below), whose sum is σ = 39671783424000. Its totient is φ = 3521748373248.

The previous prime is 13215240303157. The next prime is 13215240303253. The reversal of 13215240303240 is 4230304251231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13215240303198 and 13215240303207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2185417897 + ... + 2185423943.

It is an arithmetic number, because the mean of its divisors is an integer number (309935808000).

Almost surely, 2^{13215240303240} is an apocalyptic number.

13215240303240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13215240303240 is an abundant number, since it is smaller than the sum of its proper divisors (26456543120760).

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

13215240303240 is a wasteful number, since it uses less digits than its factorization.

13215240303240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15019 (or 15015 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 13215240303240 its reverse (4230304251231), we get a palindrome (17445544554471).

The spelling of 13215240303240 in words is "thirteen trillion, two hundred fifteen billion, two hundred forty million, three hundred three thousand, two hundred forty".