121334435353 has 2 divisors, whose sum is σ = 121334435354. Its totient is φ = 121334435352.

The previous prime is 121334435323. The next prime is 121334435371. The reversal of 121334435353 is 353534433121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106764255504 + 14570179849 = 326748^2 + 120707^2 .

It is a cyclic number.

It is not a de Polignac number, because 121334435353 - 2²¹ = 121332338201 is a prime.

It is not a weakly prime, because it can be changed into another prime (121334435323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60667217676 + 60667217677.

It is an arithmetic number, because the mean of its divisors is an integer number (60667217677).

Almost surely, 2^121334435353 is an apocalyptic number.

It is an amenable number.

121334435353 is a deficient number, since it is larger than the sum of its proper divisors (1).

121334435353 is an equidigital number, since it uses as much as digits as its factorization.

121334435353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 37.

Adding to 121334435353 its reverse (353534433121), we get a palindrome (474868868474).

The spelling of 121334435353 in words is "one hundred twenty-one billion, three hundred thirty-four million, four hundred thirty-five thousand, three hundred fifty-three".