13320121006121 has 2 divisors, whose sum is σ = 13320121006122. Its totient is φ = 13320121006120.

The previous prime is 13320121006097. The next prime is 13320121006133. The reversal of 13320121006121 is 12160012102331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8027084570521 + 5293036435600 = 2833211^2 + 2300660^2 .

It is a cyclic number.

It is not a de Polignac number, because 13320121006121 - 2⁴² = 8922074495017 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 (13320121006921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660060503060 + 6660060503061.

It is an arithmetic number, because the mean of its divisors is an integer number (6660060503061).

Almost surely, 2^{13320121006121} is an apocalyptic number.

It is an amenable number.

13320121006121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320121006121 is an equidigital number, since it uses as much as digits as its factorization.

13320121006121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13320121006121 its reverse (12160012102331), we get a palindrome (25480133108452).

The spelling of 13320121006121 in words is "thirteen trillion, three hundred twenty billion, one hundred twenty-one million, six thousand, one hundred twenty-one".