13106205243 has 24 divisors (see below), whose sum is σ = 19641585600. Its totient is φ = 8733355848.

The previous prime is 13106205209. The next prime is 13106205269. The reversal of 13106205243 is 34250260131.

13106205243 is a `hidden beast` number, since 1 + 3 + 10 + 620 + 5 + 24 + 3 = 666.

It is not a de Polignac number, because 13106205243 - 2⁶ = 13106205179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13106201243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556848 + ... + 579906.

It is an arithmetic number, because the mean of its divisors is an integer number (818399400).

Almost surely, 2^13106205243 is an apocalyptic number.

13106205243 is a deficient number, since it is larger than the sum of its proper divisors (6535380357).

13106205243 is an equidigital number, since it uses as much as digits as its factorization.

13106205243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25413 (or 25401 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 13106205243 its reverse (34250260131), we get a palindrome (47356465374).

The spelling of 13106205243 in words is "thirteen billion, one hundred six million, two hundred five thousand, two hundred forty-three".