12430731587 has 2 divisors, whose sum is σ = 12430731588. Its totient is φ = 12430731586.

The previous prime is 12430731553. The next prime is 12430731641. The reversal of 12430731587 is 78513703421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12430731587 - 2³² = 8135764291 is a prime.

It is not a weakly prime, because it can be changed into another prime (12430731787) 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, 6215365793 + 6215365794.

It is an arithmetic number, because the mean of its divisors is an integer number (6215365794).

Almost surely, 2^12430731587 is an apocalyptic number.

12430731587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430731587 is an equidigital number, since it uses as much as digits as its factorization.

12430731587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 12430731587 in words is "twelve billion, four hundred thirty million, seven hundred thirty-one thousand, five hundred eighty-seven".