12012313249 has 2 divisors, whose sum is σ = 12012313250. Its totient is φ = 12012313248.

The previous prime is 12012313177. The next prime is 12012313259. The reversal of 12012313249 is 94231321021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9154662400 + 2857650849 = 95680^2 + 53457^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012313249 - 2⁷ = 12012313121 is a prime.

It is not a weakly prime, because it can be changed into another prime (12012313259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006156624 + 6006156625.

It is an arithmetic number, because the mean of its divisors is an integer number (6006156625).

Almost surely, 2^12012313249 is an apocalyptic number.

It is an amenable number.

12012313249 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012313249 is an equidigital number, since it uses as much as digits as its factorization.

12012313249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 12012313249 in words is "twelve billion, twelve million, three hundred thirteen thousand, two hundred forty-nine".