12101111017 has 2 divisors, whose sum is σ = 12101111018. Its totient is φ = 12101111016.

The previous prime is 12101110991. The next prime is 12101111101. The reversal of 12101111017 is 71011110121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8877596841 + 3223514176 = 94221^2 + 56776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101111017 is a prime.

It is not a weakly prime, because it can be changed into another prime (12101111117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050555508 + 6050555509.

It is an arithmetic number, because the mean of its divisors is an integer number (6050555509).

Almost surely, 2^12101111017 is an apocalyptic number.

It is an amenable number.

12101111017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101111017 is an equidigital number, since it uses as much as digits as its factorization.

12101111017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 16.

Adding to 12101111017 its reverse (71011110121), we get a palindrome (83112221138).

The spelling of 12101111017 in words is "twelve billion, one hundred one million, one hundred eleven thousand, seventeen".