121512060512047 has 2 divisors, whose sum is σ = 121512060512048. Its totient is φ = 121512060512046.

The previous prime is 121512060512023. The next prime is 121512060512069. The reversal of 121512060512047 is 740215060215121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121512060512047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121512060511997 and 121512060512015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121512060012047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60756030256023 + 60756030256024.

It is an arithmetic number, because the mean of its divisors is an integer number (60756030256024).

Almost surely, 2^{121512060512047} is an apocalyptic number.

121512060512047 is a deficient number, since it is larger than the sum of its proper divisors (1).

121512060512047 is an equidigital number, since it uses as much as digits as its factorization.

121512060512047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 121512060512047 in words is "one hundred twenty-one trillion, five hundred twelve billion, sixty million, five hundred twelve thousand, forty-seven".