111321106717 has 2 divisors, whose sum is σ = 111321106718. Its totient is φ = 111321106716.

The previous prime is 111321106709. The next prime is 111321106739. The reversal of 111321106717 is 717601123111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86025476601 + 25295630116 = 293301^2 + 159046^2 .

It is a cyclic number.

It is not a de Polignac number, because 111321106717 - 2³ = 111321106709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111321106777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55660553358 + 55660553359.

It is an arithmetic number, because the mean of its divisors is an integer number (55660553359).

Almost surely, 2^111321106717 is an apocalyptic number.

It is an amenable number.

111321106717 is a deficient number, since it is larger than the sum of its proper divisors (1).

111321106717 is an equidigital number, since it uses as much as digits as its factorization.

111321106717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 31.

Adding to 111321106717 its reverse (717601123111), we get a palindrome (828922229828).

The spelling of 111321106717 in words is "one hundred eleven billion, three hundred twenty-one million, one hundred six thousand, seven hundred seventeen".