121334435273 has 2 divisors, whose sum is σ = 121334435274. Its totient is φ = 121334435272.

The previous prime is 121334435269. The next prime is 121334435297. The reversal of 121334435273 is 372534433121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77357409424 + 43977025849 = 278132^2 + 209707^2 .

It is a cyclic number.

It is not a de Polignac number, because 121334435273 - 2² = 121334435269 is a prime.

It is not a weakly prime, because it can be changed into another prime (121334432273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60667217636 + 60667217637.

It is an arithmetic number, because the mean of its divisors is an integer number (60667217637).

Almost surely, 2^121334435273 is an apocalyptic number.

It is an amenable number.

121334435273 is a deficient number, since it is larger than the sum of its proper divisors (1).

121334435273 is an equidigital number, since it uses as much as digits as its factorization.

121334435273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 38.

Adding to 121334435273 its reverse (372534433121), we get a palindrome (493868868394).

The spelling of 121334435273 in words is "one hundred twenty-one billion, three hundred thirty-four million, four hundred thirty-five thousand, two hundred seventy-three".