13125442513240 has 32 divisors (see below), whose sum is σ = 31269436577280. Its totient is φ = 4941343063552.

The previous prime is 13125442513213. The next prime is 13125442513259. The reversal of 13125442513240 is 4231524452131.

It is a self number, because there is not a number n which added to its sum of digits gives 13125442513240.

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 7 ways as a sum of consecutive naturals, for example, 9651059992 + ... + 9651061351.

It is an arithmetic number, because the mean of its divisors is an integer number (977169893040).

Almost surely, 2^{13125442513240} is an apocalyptic number.

13125442513240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13125442513240 is an abundant number, since it is smaller than the sum of its proper divisors (18143994064040).

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

13125442513240 is a wasteful number, since it uses less digits than its factorization.

13125442513240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19302121371 (or 19302121367 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 13125442513240 its reverse (4231524452131), we get a palindrome (17356966965371).

The spelling of 13125442513240 in words is "thirteen trillion, one hundred twenty-five billion, four hundred forty-two million, five hundred thirteen thousand, two hundred forty".