13315434515020 has 48 divisors (see below), whose sum is σ = 30506785344000. Its totient is φ = 4841605494720.

The previous prime is 13315434514979. The next prime is 13315434515029. The reversal of 13315434515020 is 2051543451331.

13315434515020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13315434515029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571501 + ... + 5192059.

It is an arithmetic number, because the mean of its divisors is an integer number (635558028000).

Almost surely, 2^{13315434515020} is an apocalyptic number.

13315434515020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13315434515020 is an abundant number, since it is smaller than the sum of its proper divisors (17191350828980).

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

13315434515020 is a wasteful number, since it uses less digits than its factorization.

13315434515020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633678 (or 4633676 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 13315434515020 its reverse (2051543451331), we get a palindrome (15366977966351).

The spelling of 13315434515020 in words is "thirteen trillion, three hundred fifteen billion, four hundred thirty-four million, five hundred fifteen thousand, twenty".