121313332032281 has 2 divisors, whose sum is σ = 121313332032282. Its totient is φ = 121313332032280.

The previous prime is 121313332032259. The next prime is 121313332032337. The reversal of 121313332032281 is 182230233313121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119137574280256 + 2175757752025 = 10915016^2 + 1475045^2 .

It is a cyclic number.

It is not a de Polignac number, because 121313332032281 - 2⁴⁶ = 50944587854617 is a prime.

It is a super-2 number, since 2×121313332032281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121313332037281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656666016140 + 60656666016141.

It is an arithmetic number, because the mean of its divisors is an integer number (60656666016141).

Almost surely, 2^{121313332032281} is an apocalyptic number.

It is an amenable number.

121313332032281 is a deficient number, since it is larger than the sum of its proper divisors (1).

121313332032281 is an equidigital number, since it uses as much as digits as its factorization.

121313332032281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 121313332032281 in words is "one hundred twenty-one trillion, three hundred thirteen billion, three hundred thirty-two million, thirty-two thousand, two hundred eighty-one".