13105325551240 has 32 divisors (see below), whose sum is σ = 31755211913880. Its totient is φ = 4838889434112.

The previous prime is 13105325551237. The next prime is 13105325551291. The reversal of 13105325551240 is 4215552350131.

It can be written as a sum of positive squares in 4 ways, for example, as 6587302097476 + 6518023453764 = 2566574^2 + 2553042^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13105325551240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12601274049 + ... + 12601275088.

Almost surely, 2^{13105325551240} is an apocalyptic number.

13105325551240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13105325551240 is an abundant number, since it is smaller than the sum of its proper divisors (18649886362640).

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

13105325551240 is a wasteful number, since it uses less digits than its factorization.

13105325551240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25202549161 (or 25202549157 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 13105325551240 in words is "thirteen trillion, one hundred five billion, three hundred twenty-five million, five hundred fifty-one thousand, two hundred forty".