13440213355 has 4 divisors (see below), whose sum is σ = 16128256032. Its totient is φ = 10752170680.

The previous prime is 13440213349. The next prime is 13440213361. The reversal of 13440213355 is 55331204431.

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

It is an interprime number because it is at equal distance from previous prime (13440213349) and next prime (13440213361).

It is not a de Polignac number, because 13440213355 - 2²¹ = 13438116203 is a prime.

It is a Duffinian 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, 1344021331 + ... + 1344021340.

It is an arithmetic number, because the mean of its divisors is an integer number (4032064008).

Almost surely, 2^13440213355 is an apocalyptic number.

13440213355 is a deficient number, since it is larger than the sum of its proper divisors (2688042677).

13440213355 is an equidigital number, since it uses as much as digits as its factorization.

13440213355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688042676.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13440213355 its reverse (55331204431), we get a palindrome (68771417786).

The spelling of 13440213355 in words is "thirteen billion, four hundred forty million, two hundred thirteen thousand, three hundred fifty-five".