121302310193 has 2 divisors, whose sum is σ = 121302310194. Its totient is φ = 121302310192.

The previous prime is 121302310183. The next prime is 121302310231. The reversal of 121302310193 is 391013203121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89298173584 + 32004136609 = 298828^2 + 178897^2 .

It is an emirp because it is prime and its reverse (391013203121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121302310193 - 2⁴ = 121302310177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121302310183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651155096 + 60651155097.

It is an arithmetic number, because the mean of its divisors is an integer number (60651155097).

Almost surely, 2^121302310193 is an apocalyptic number.

It is an amenable number.

121302310193 is a deficient number, since it is larger than the sum of its proper divisors (1).

121302310193 is an equidigital number, since it uses as much as digits as its factorization.

121302310193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 121302310193 in words is "one hundred twenty-one billion, three hundred two million, three hundred ten thousand, one hundred ninety-three".