121434604717 has 2 divisors, whose sum is σ = 121434604718. Its totient is φ = 121434604716.

The previous prime is 121434604693. The next prime is 121434604751. The reversal of 121434604717 is 717406434121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79624988041 + 41809616676 = 282179^2 + 204474^2 .

It is a cyclic number.

It is not a de Polignac number, because 121434604717 - 2¹⁵ = 121434571949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121434604717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121434604757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60717302358 + 60717302359.

It is an arithmetic number, because the mean of its divisors is an integer number (60717302359).

Almost surely, 2^121434604717 is an apocalyptic number.

It is an amenable number.

121434604717 is a deficient number, since it is larger than the sum of its proper divisors (1).

121434604717 is an equidigital number, since it uses as much as digits as its factorization.

121434604717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 121434604717 in words is "one hundred twenty-one billion, four hundred thirty-four million, six hundred four thousand, seven hundred seventeen".