12354121487 has 2 divisors, whose sum is σ = 12354121488. Its totient is φ = 12354121486.

The previous prime is 12354121447. The next prime is 12354121513. The reversal of 12354121487 is 78412145321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12354121487 - 2¹⁴ = 12354105103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12354121487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12354121447) 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, 6177060743 + 6177060744.

It is an arithmetic number, because the mean of its divisors is an integer number (6177060744).

Almost surely, 2^12354121487 is an apocalyptic number.

12354121487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12354121487 is an equidigital number, since it uses as much as digits as its factorization.

12354121487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The spelling of 12354121487 in words is "twelve billion, three hundred fifty-four million, one hundred twenty-one thousand, four hundred eighty-seven".