13305131035440 has 80 divisors (see below), whose sum is σ = 41246327301216. Its totient is φ = 3547998720000.

The previous prime is 13305131035439. The next prime is 13305131035463. The reversal of 13305131035440 is 4453013150331.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30020250 + ... + 30460230.

Almost surely, 2^{13305131035440} is an apocalyptic number.

13305131035440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13305131035440 is an abundant number, since it is smaller than the sum of its proper divisors (27941196265776).

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

13305131035440 is a wasteful number, since it uses less digits than its factorization.

13305131035440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565998 (or 565992 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 13305131035440 its reverse (4453013150331), we get a palindrome (17758144185771).

The spelling of 13305131035440 in words is "thirteen trillion, three hundred five billion, one hundred thirty-one million, thirty-five thousand, four hundred forty".