12430278491 has 2 divisors, whose sum is σ = 12430278492. Its totient is φ = 12430278490.

The previous prime is 12430278481. The next prime is 12430278499. The reversal of 12430278491 is 19487203421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12430278491 - 2¹⁰ = 12430277467 is a prime.

It is not a weakly prime, because it can be changed into another prime (12430278499) 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, 6215139245 + 6215139246.

It is an arithmetic number, because the mean of its divisors is an integer number (6215139246).

Almost surely, 2^12430278491 is an apocalyptic number.

12430278491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430278491 is an equidigital number, since it uses as much as digits as its factorization.

12430278491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 12430278491 in words is "twelve billion, four hundred thirty million, two hundred seventy-eight thousand, four hundred ninety-one".