12291938429 has 2 divisors, whose sum is σ = 12291938430. Its totient is φ = 12291938428.

The previous prime is 12291938381. The next prime is 12291938437. The reversal of 12291938429 is 92483919221.

12291938429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9350503204 + 2941435225 = 96698^2 + 54235^2 .

It is a cyclic number.

It is not a de Polignac number, because 12291938429 - 2³² = 7996971133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12291938629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145969214 + 6145969215.

It is an arithmetic number, because the mean of its divisors is an integer number (6145969215).

Almost surely, 2^12291938429 is an apocalyptic number.

It is an amenable number.

12291938429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12291938429 is an equidigital number, since it uses as much as digits as its factorization.

12291938429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The spelling of 12291938429 in words is "twelve billion, two hundred ninety-one million, nine hundred thirty-eight thousand, four hundred twenty-nine".