121355406020059 has 2 divisors, whose sum is σ = 121355406020060. Its totient is φ = 121355406020058.

The previous prime is 121355406019999. The next prime is 121355406020063. The reversal of 121355406020059 is 950020604553121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121355406020059 - 2²⁵ = 121355372465627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121355406019997 and 121355406020024.

It is not a weakly prime, because it can be changed into another prime (121355406020099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60677703010029 + 60677703010030.

It is an arithmetic number, because the mean of its divisors is an integer number (60677703010030).

Almost surely, 2^{121355406020059} is an apocalyptic number.

121355406020059 is a deficient number, since it is larger than the sum of its proper divisors (1).

121355406020059 is an equidigital number, since it uses as much as digits as its factorization.

121355406020059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 121355406020059 in words is "one hundred twenty-one trillion, three hundred fifty-five billion, four hundred six million, twenty thousand, fifty-nine".