12111017 has 2 divisors, whose sum is σ = 12111018. Its totient is φ = 12111016.

The previous prime is 12110971. The next prime is 12111019. The reversal of 12111017 is 71011121.

12111017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11978521 + 132496 = 3461^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111017 - 2¹² = 12106921 is a prime.

Together with 12111019, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12110992 and 12111010.

It is not a weakly prime, because it can be changed into another prime (12111019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055508 + 6055509.

It is an arithmetic number, because the mean of its divisors is an integer number (6055509).

Almost surely, 2^12111017 is an apocalyptic number.

It is an amenable number.

12111017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111017 is an equidigital number, since it uses as much as digits as its factorization.

12111017 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 12111017 is about 3480.0886482962. The cubic root of 12111017 is about 229.6466976467.

Adding to 12111017 its reverse (71011121), we get a palindrome (83122138).

The spelling of 12111017 in words is "twelve million, one hundred eleven thousand, seventeen".