12123302011 has 2 divisors, whose sum is σ = 12123302012. Its totient is φ = 12123302010.

The previous prime is 12123302003. The next prime is 12123302101. The reversal of 12123302011 is 11020332121.

Together with next prime (12123302101) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (11020332121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12123302011 - 2³ = 12123302003 is a prime.

It is not a weakly prime, because it can be changed into another prime (12123302111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061651005 + 6061651006.

It is an arithmetic number, because the mean of its divisors is an integer number (6061651006).

Almost surely, 2^12123302011 is an apocalyptic number.

12123302011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123302011 is an equidigital number, since it uses as much as digits as its factorization.

12123302011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12123302011 its reverse (11020332121), we get a palindrome (23143634132).

The spelling of 12123302011 in words is "twelve billion, one hundred twenty-three million, three hundred two thousand, eleven".