13112254205 has 4 divisors (see below), whose sum is σ = 15734705052. Its totient is φ = 10489803360.

The previous prime is 13112254193. The next prime is 13112254273. The reversal of 13112254205 is 50245221131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2195765881 + 10916488324 = 46859^2 + 104482^2 .

It is not a de Polignac number, because 13112254205 - 2⁴ = 13112254189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311225416 + ... + 1311225425.

It is an arithmetic number, because the mean of its divisors is an integer number (3933676263).

Almost surely, 2^13112254205 is an apocalyptic number.

It is an amenable number.

13112254205 is a deficient number, since it is larger than the sum of its proper divisors (2622450847).

13112254205 is an equidigital number, since it uses as much as digits as its factorization.

13112254205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622450846.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 13112254205 its reverse (50245221131), we get a palindrome (63357475336).

The spelling of 13112254205 in words is "thirteen billion, one hundred twelve million, two hundred fifty-four thousand, two hundred five".