12123011071 has 2 divisors, whose sum is σ = 12123011072. Its totient is φ = 12123011070.

The previous prime is 12123011053. The next prime is 12123011081. The reversal of 12123011071 is 17011032121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123011071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123011081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061505535 + 6061505536.

It is an arithmetic number, because the mean of its divisors is an integer number (6061505536).

Almost surely, 2^12123011071 is an apocalyptic number.

12123011071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123011071 is an equidigital number, since it uses as much as digits as its factorization.

12123011071 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12123011071 its reverse (17011032121), we get a palindrome (29134043192).

The spelling of 12123011071 in words is "twelve billion, one hundred twenty-three million, eleven thousand, seventy-one".