12011121002123 has 2 divisors, whose sum is σ = 12011121002124. Its totient is φ = 12011121002122.

The previous prime is 12011121002081. The next prime is 12011121002131. The reversal of 12011121002123 is 32120012111021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011121002123 - 2⁶ = 12011121002059 is a prime.

It is not a weakly prime, because it can be changed into another prime (12011121005123) 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, 6005560501061 + 6005560501062.

It is an arithmetic number, because the mean of its divisors is an integer number (6005560501062).

Almost surely, 2^{12011121002123} is an apocalyptic number.

12011121002123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011121002123 is an equidigital number, since it uses as much as digits as its factorization.

12011121002123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12011121002123 its reverse (32120012111021), we get a palindrome (44131133113144).

The spelling of 12011121002123 in words is "twelve trillion, eleven billion, one hundred twenty-one million, two thousand, one hundred twenty-three".