121514302487 has 2 divisors, whose sum is σ = 121514302488. Its totient is φ = 121514302486.

The previous prime is 121514302463. The next prime is 121514302513. The reversal of 121514302487 is 784203415121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121514302487 - 2¹⁰ = 121514301463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121514302487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121514302187) 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, 60757151243 + 60757151244.

It is an arithmetic number, because the mean of its divisors is an integer number (60757151244).

Almost surely, 2^121514302487 is an apocalyptic number.

121514302487 is a deficient number, since it is larger than the sum of its proper divisors (1).

121514302487 is an equidigital number, since it uses as much as digits as its factorization.

121514302487 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 121514302487 in words is "one hundred twenty-one billion, five hundred fourteen million, three hundred two thousand, four hundred eighty-seven".