13105403434545 has 16 divisors (see below), whose sum is σ = 22202095230720. Its totient is φ = 6578398586624.

The previous prime is 13105403434523. The next prime is 13105403434561. The reversal of 13105403434545 is 54543430450131.

It is a cyclic number.

It is not a de Polignac number, because 13105403434545 - 2⁸ = 13105403434289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13105403434497 and 13105403434506.

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, 25696869225 + ... + 25696869734.

It is an arithmetic number, because the mean of its divisors is an integer number (1387630951920).

Almost surely, 2^{13105403434545} is an apocalyptic number.

13105403434545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13105403434545 is a deficient number, since it is larger than the sum of its proper divisors (9096691796175).

13105403434545 is a wasteful number, since it uses less digits than its factorization.

13105403434545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51393738984.

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 13105403434545 its reverse (54543430450131), we get a palindrome (67648833884676).

The spelling of 13105403434545 in words is "thirteen trillion, one hundred five billion, four hundred three million, four hundred thirty-four thousand, five hundred forty-five".