13223661140717 has 4 divisors (see below), whose sum is σ = 13223718926460. Its totient is φ = 13223603354976.

The previous prime is 13223661140699. The next prime is 13223661140749. The reversal of 13223661140717 is 71704116632231.

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 11051542276996 + 2172118863721 = 3324386^2 + 1473811^2 .

It is a cyclic number.

It is not a de Polignac number, because 13223661140717 - 2⁸ = 13223661140461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223661190717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28548242 + ... + 29007747.

It is an arithmetic number, because the mean of its divisors is an integer number (3305929731615).

Almost surely, 2^{13223661140717} is an apocalyptic number.

It is an amenable number.

13223661140717 is a deficient number, since it is larger than the sum of its proper divisors (57785743).

13223661140717 is an equidigital number, since it uses as much as digits as its factorization.

13223661140717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57785742.

The product of its (nonzero) digits is 254016, while the sum is 44.

Adding to 13223661140717 its reverse (71704116632231), we get a palindrome (84927777772948).

The spelling of 13223661140717 in words is "thirteen trillion, two hundred twenty-three billion, six hundred sixty-one million, one hundred forty thousand, seven hundred seventeen".