13131252533240 has 16 divisors (see below), whose sum is σ = 29545318199880. Its totient is φ = 5252501013280.

The previous prime is 13131252533221. The next prime is 13131252533339. The reversal of 13131252533240 is 4233525213131.

It is a self number, because there is not a number n which added to its sum of digits gives 13131252533240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164140656626 + ... + 164140656705.

Almost surely, 2^{13131252533240} is an apocalyptic number.

13131252533240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131252533240 is an abundant number, since it is smaller than the sum of its proper divisors (16414065666640).

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

13131252533240 is a wasteful number, since it uses less digits than its factorization.

13131252533240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328281313342 (or 328281313338 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 13131252533240 its reverse (4233525213131), we get a palindrome (17364777746371).

The spelling of 13131252533240 in words is "thirteen trillion, one hundred thirty-one billion, two hundred fifty-two million, five hundred thirty-three thousand, two hundred forty".