12123034171 has 2 divisors, whose sum is σ = 12123034172. Its totient is φ = 12123034170.

The previous prime is 12123034093. The next prime is 12123034177. The reversal of 12123034171 is 17143032121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12123034171 - 2¹⁵ = 12123001403 is a prime.

It is a super-2 number, since 2×12123034171² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12123034177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061517085 + 6061517086.

It is an arithmetic number, because the mean of its divisors is an integer number (6061517086).

Almost surely, 2^12123034171 is an apocalyptic number.

12123034171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123034171 is an equidigital number, since it uses as much as digits as its factorization.

12123034171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 12123034171 its reverse (17143032121), we get a palindrome (29266066292).

The spelling of 12123034171 in words is "twelve billion, one hundred twenty-three million, thirty-four thousand, one hundred seventy-one".