12012123049 has 2 divisors, whose sum is σ = 12012123050. Its totient is φ = 12012123048.

The previous prime is 12012122987. The next prime is 12012123061. The reversal of 12012123049 is 94032121021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11822647824 + 189475225 = 108732^2 + 13765^2 .

It is an emirp because it is prime and its reverse (94032121021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12012123049 - 2⁷ = 12012122921 is a prime.

It is a super-2 number, since 2×12012123049² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12012123749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006061524 + 6006061525.

It is an arithmetic number, because the mean of its divisors is an integer number (6006061525).

Almost surely, 2^12012123049 is an apocalyptic number.

It is an amenable number.

12012123049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012123049 is an equidigital number, since it uses as much as digits as its factorization.

12012123049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 12012123049 in words is "twelve billion, twelve million, one hundred twenty-three thousand, forty-nine".