13242513112520 has 48 divisors (see below), whose sum is σ = 31651439240340. Its totient is φ = 4985416696832.

The previous prime is 13242513112501. The next prime is 13242513112523. The reversal of 13242513112520 is 2521131524231.

It can be written as a sum of positive squares in 6 ways, for example, as 7886223130564 + 5356289981956 = 2808242^2 + 2314366^2 .

It is not an unprimeable number, because it can be changed into a prime (13242513112523) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 572761499 + ... + 572784618.

Almost surely, 2^{13242513112520} is an apocalyptic number.

13242513112520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13242513112520 is an abundant number, since it is smaller than the sum of its proper divisors (18408926127820).

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

13242513112520 is a wasteful number, since it uses less digits than its factorization.

13242513112520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145546162 (or 1145546141 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 13242513112520 its reverse (2521131524231), we get a palindrome (15763644636751).

The spelling of 13242513112520 in words is "thirteen trillion, two hundred forty-two billion, five hundred thirteen million, one hundred twelve thousand, five hundred twenty".