13220113117 has 2 divisors, whose sum is σ = 13220113118. Its totient is φ = 13220113116.

The previous prime is 13220113111. The next prime is 13220113157. The reversal of 13220113117 is 71131102231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12421994116 + 798119001 = 111454^2 + 28251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220113117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13220113111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610056558 + 6610056559.

It is an arithmetic number, because the mean of its divisors is an integer number (6610056559).

Almost surely, 2^13220113117 is an apocalyptic number.

It is an amenable number.

13220113117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220113117 is an equidigital number, since it uses as much as digits as its factorization.

13220113117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 13220113117 its reverse (71131102231), we get a palindrome (84351215348).

The spelling of 13220113117 in words is "thirteen billion, two hundred twenty million, one hundred thirteen thousand, one hundred seventeen".