12011117 has 2 divisors, whose sum is σ = 12011118. Its totient is φ = 12011116.

The previous prime is 12011113. The next prime is 12011123. The reversal of 12011117 is 71111021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11464996 + 546121 = 3386^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011117 - 2² = 12011113 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005558 + 6005559.

It is an arithmetic number, because the mean of its divisors is an integer number (6005559).

Almost surely, 2^12011117 is an apocalyptic number.

It is an amenable number.

12011117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011117 is an equidigital number, since it uses as much as digits as its factorization.

12011117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 12011117 is about 3465.7058444132. The cubic root of 12011117 is about 229.0135255132.

Adding to 12011117 its reverse (71111021), we get a palindrome (83122138).

The spelling of 12011117 in words is "twelve million, eleven thousand, one hundred seventeen".