111012320117 has 2 divisors, whose sum is σ = 111012320118. Its totient is φ = 111012320116.

The previous prime is 111012320101. The next prime is 111012320119. The reversal of 111012320117 is 711023210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110233296196 + 779023921 = 332014^2 + 27911^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012320117 - 2⁴ = 111012320101 is a prime.

Together with 111012320119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012320119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506160058 + 55506160059.

It is an arithmetic number, because the mean of its divisors is an integer number (55506160059).

Almost surely, 2^111012320117 is an apocalyptic number.

It is an amenable number.

111012320117 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012320117 is an equidigital number, since it uses as much as digits as its factorization.

111012320117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 111012320117 its reverse (711023210111), we get a palindrome (822035530228).

The spelling of 111012320117 in words is "one hundred eleven billion, twelve million, three hundred twenty thousand, one hundred seventeen".