121959676957073 has 2 divisors, whose sum is σ = 121959676957074. Its totient is φ = 121959676957072.

The previous prime is 121959676956961. The next prime is 121959676957081. The reversal of 121959676957073 is 370759676959121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110493482281744 + 11466194675329 = 10511588^2 + 3386177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121959676957073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121959676956985 and 121959676957003.

It is not a weakly prime, because it can be changed into another prime (121959676987073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60979838478536 + 60979838478537.

It is an arithmetic number, because the mean of its divisors is an integer number (60979838478537).

Almost surely, 2^{121959676957073} is an apocalyptic number.

It is an amenable number.

121959676957073 is a deficient number, since it is larger than the sum of its proper divisors (1).

121959676957073 is an equidigital number, since it uses as much as digits as its factorization.

121959676957073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350253800, while the sum is 77.

The spelling of 121959676957073 in words is "one hundred twenty-one trillion, nine hundred fifty-nine billion, six hundred seventy-six million, nine hundred fifty-seven thousand, seventy-three".