13221111240013 has 2 divisors, whose sum is σ = 13221111240014. Its totient is φ = 13221111240012.

The previous prime is 13221111239953. The next prime is 13221111240031. The reversal of 13221111240013 is 31004211112231.

Together with next prime (13221111240031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9642347775369 + 3578763464644 = 3105213^2 + 1891762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221111240013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221111240053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610555620006 + 6610555620007.

It is an arithmetic number, because the mean of its divisors is an integer number (6610555620007).

Almost surely, 2^{13221111240013} is an apocalyptic number.

It is an amenable number.

13221111240013 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221111240013 is an equidigital number, since it uses as much as digits as its factorization.

13221111240013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 13221111240013 its reverse (31004211112231), we get a palindrome (44225322352244).

The spelling of 13221111240013 in words is "thirteen trillion, two hundred twenty-one billion, one hundred eleven million, two hundred forty thousand, thirteen".