121455502505411 has 2 divisors, whose sum is σ = 121455502505412. Its totient is φ = 121455502505410.

The previous prime is 121455502505327. The next prime is 121455502505419. The reversal of 121455502505411 is 114505205554121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121455502505411 - 2³⁴ = 121438322636227 is a prime.

It is not a weakly prime, because it can be changed into another prime (121455502505419) 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, 60727751252705 + 60727751252706.

It is an arithmetic number, because the mean of its divisors is an integer number (60727751252706).

Almost surely, 2^{121455502505411} is an apocalyptic number.

121455502505411 is a deficient number, since it is larger than the sum of its proper divisors (1).

121455502505411 is an equidigital number, since it uses as much as digits as its factorization.

121455502505411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200000, while the sum is 41.

The spelling of 121455502505411 in words is "one hundred twenty-one trillion, four hundred fifty-five billion, five hundred two million, five hundred five thousand, four hundred eleven".