12012120112123 has 2 divisors, whose sum is σ = 12012120112124. Its totient is φ = 12012120112122.

The previous prime is 12012120112049. The next prime is 12012120112129. The reversal of 12012120112123 is 32121102121021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12012120112123 - 2¹³ = 12012120103931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12012120112123.

It is not a weakly prime, because it can be changed into another prime (12012120112129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006060056061 + 6006060056062.

It is an arithmetic number, because the mean of its divisors is an integer number (6006060056062).

Almost surely, 2^{12012120112123} is an apocalyptic number.

12012120112123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012120112123 is an equidigital number, since it uses as much as digits as its factorization.

12012120112123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12012120112123 its reverse (32121102121021), we get a palindrome (44133222233144).

The spelling of 12012120112123 in words is "twelve trillion, twelve billion, one hundred twenty million, one hundred twelve thousand, one hundred twenty-three".