13218104245 has 8 divisors (see below), whose sum is σ = 15912403416. Its totient is φ = 10540697856.

The previous prime is 13218104203. The next prime is 13218104287. The reversal of 13218104245 is 54240181231.

It is an interprime number because it is at equal distance from previous prime (13218104203) and next prime (13218104287).

It can be written as a sum of positive squares in 4 ways, for example, as 1327946481 + 11890157764 = 36441^2 + 109042^2 .

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 13218104245 - 2¹¹ = 13218102197 is a prime.

It is a super-3 number, since 3×13218104245³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4221472 + ... + 4224601.

It is an arithmetic number, because the mean of its divisors is an integer number (1989050427).

Almost surely, 2^13218104245 is an apocalyptic number.

It is an amenable number.

13218104245 is a deficient number, since it is larger than the sum of its proper divisors (2694299171).

13218104245 is an equidigital number, since it uses as much as digits as its factorization.

13218104245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446391.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 13218104245 its reverse (54240181231), we get a palindrome (67458285476).

The spelling of 13218104245 in words is "thirteen billion, two hundred eighteen million, one hundred four thousand, two hundred forty-five".