13512206105 has 8 divisors (see below), whose sum is σ = 16520584392. Its totient is φ = 10605806848.

The previous prime is 13512206047. The next prime is 13512206107. The reversal of 13512206105 is 50160221531.

It can be written as a sum of positive squares in 4 ways, for example, as 5529855769 + 7982350336 = 74363^2 + 89344^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13512206105 - 2¹⁴ = 13512189721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13512206107) 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, 25494464 + ... + 25494993.

It is an arithmetic number, because the mean of its divisors is an integer number (2065073049).

Almost surely, 2^13512206105 is an apocalyptic number.

It is an amenable number.

13512206105 is a deficient number, since it is larger than the sum of its proper divisors (3008378287).

13512206105 is an equidigital number, since it uses as much as digits as its factorization.

13512206105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50989515.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 13512206105 its reverse (50160221531), we get a palindrome (63672427636).

The spelling of 13512206105 in words is "thirteen billion, five hundred twelve million, two hundred six thousand, one hundred five".