12011201173 has 2 divisors, whose sum is σ = 12011201174. Its totient is φ = 12011201172.

The previous prime is 12011201171. The next prime is 12011201221. The reversal of 12011201173 is 37110211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10249132644 + 1762068529 = 101238^2 + 41977^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011201173 - 2¹ = 12011201171 is a prime.

Together with 12011201171, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12011201173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011201171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005600586 + 6005600587.

It is an arithmetic number, because the mean of its divisors is an integer number (6005600587).

Almost surely, 2^12011201173 is an apocalyptic number.

It is an amenable number.

12011201173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011201173 is an equidigital number, since it uses as much as digits as its factorization.

12011201173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 19.

Adding to 12011201173 its reverse (37110211021), we get a palindrome (49121412194).

The spelling of 12011201173 in words is "twelve billion, eleven million, two hundred one thousand, one hundred seventy-three".