121301203210009 has 2 divisors, whose sum is σ = 121301203210010. Its totient is φ = 121301203210008.

The previous prime is 121301203209997. The next prime is 121301203210111. The reversal of 121301203210009 is 900012302103121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115626578880400 + 5674624329609 = 10752980^2 + 2382147^2 .

It is a cyclic number.

It is not a de Polignac number, because 121301203210009 - 2¹³ = 121301203201817 is a prime.

It is not a weakly prime, because it can be changed into another prime (121301203210309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650601605004 + 60650601605005.

It is an arithmetic number, because the mean of its divisors is an integer number (60650601605005).

Almost surely, 2^{121301203210009} is an apocalyptic number.

It is an amenable number.

121301203210009 is a deficient number, since it is larger than the sum of its proper divisors (1).

121301203210009 is an equidigital number, since it uses as much as digits as its factorization.

121301203210009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 121301203210009 in words is "one hundred twenty-one trillion, three hundred one billion, two hundred three million, two hundred ten thousand, nine".