121303353397 has 2 divisors, whose sum is σ = 121303353398. Its totient is φ = 121303353396.

The previous prime is 121303353377. The next prime is 121303353421. The reversal of 121303353397 is 793353303121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101863743921 + 19439609476 = 319161^2 + 139426^2 .

It is a cyclic number.

It is not a de Polignac number, because 121303353397 - 2²³ = 121294964789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121303353377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651676698 + 60651676699.

It is an arithmetic number, because the mean of its divisors is an integer number (60651676699).

Almost surely, 2^121303353397 is an apocalyptic number.

It is an amenable number.

121303353397 is a deficient number, since it is larger than the sum of its proper divisors (1).

121303353397 is an equidigital number, since it uses as much as digits as its factorization.

121303353397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 40.

The spelling of 121303353397 in words is "one hundred twenty-one billion, three hundred three million, three hundred fifty-three thousand, three hundred ninety-seven".