13530131115240 has 128 divisors (see below), whose sum is σ = 42729292224000. Its totient is φ = 3417933397248.

The previous prime is 13530131115223. The next prime is 13530131115257. The reversal of 13530131115240 is 4251113103531.

It is an interprime number because it is at equal distance from previous prime (13530131115223) and next prime (13530131115257).

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 = 13530131115198 and 13530131115207.

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, 39819747 + ... + 40158093.

It is an arithmetic number, because the mean of its divisors is an integer number (333822595500).

Almost surely, 2^{13530131115240} is an apocalyptic number.

13530131115240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13530131115240 is an abundant number, since it is smaller than the sum of its proper divisors (29199161108760).

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

13530131115240 is a wasteful number, since it uses less digits than its factorization.

13530131115240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355919 (or 355915 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 13530131115240 its reverse (4251113103531), we get a palindrome (17781244218771).

The spelling of 13530131115240 in words is "thirteen trillion, five hundred thirty billion, one hundred thirty-one million, one hundred fifteen thousand, two hundred forty".