121021323130273 has 2 divisors, whose sum is σ = 121021323130274. Its totient is φ = 121021323130272.

The previous prime is 121021323130231. The next prime is 121021323130363. The reversal of 121021323130273 is 372031323120121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67993333081249 + 53027990049024 = 8245807^2 + 7282032^2 .

It is a cyclic number.

It is not a de Polignac number, because 121021323130273 - 2²¹ = 121021321033121 is a prime.

It is not a weakly prime, because it can be changed into another prime (121021323130223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510661565136 + 60510661565137.

It is an arithmetic number, because the mean of its divisors is an integer number (60510661565137).

Almost surely, 2^{121021323130273} is an apocalyptic number.

It is an amenable number.

121021323130273 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021323130273 is an equidigital number, since it uses as much as digits as its factorization.

121021323130273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 121021323130273 its reverse (372031323120121), we get a palindrome (493052646250394).

The spelling of 121021323130273 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred twenty-three million, one hundred thirty thousand, two hundred seventy-three".