13105403434506 has 16 divisors (see below), whose sum is σ = 26212532241024. Its totient is φ = 4368180249504.

The previous prime is 13105403434471. The next prime is 13105403434507. The reversal of 13105403434506 is 60543430450131.

It is not an unprimeable number, because it can be changed into a prime (13105403434507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71791746 + ... + 71974061.

It is an arithmetic number, because the mean of its divisors is an integer number (1638283265064).

Almost surely, 2^{13105403434506} is an apocalyptic number.

13105403434506 is an abundant number, since it is smaller than the sum of its proper divisors (13107128806518).

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

13105403434506 is a wasteful number, since it uses less digits than its factorization.

13105403434506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143781005.

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 13105403434506 its reverse (60543430450131), we get a palindrome (73648833884637).

The spelling of 13105403434506 in words is "thirteen trillion, one hundred five billion, four hundred three million, four hundred thirty-four thousand, five hundred six".