121313112310211 has 2 divisors, whose sum is σ = 121313112310212. Its totient is φ = 121313112310210.

The previous prime is 121313112310151. The next prime is 121313112310213. The reversal of 121313112310211 is 112013211313121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121313112310211 - 2¹⁸ = 121313112048067 is a prime.

Together with 121313112310213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121313112310213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656556155105 + 60656556155106.

It is an arithmetic number, because the mean of its divisors is an integer number (60656556155106).

Almost surely, 2^{121313112310211} is an apocalyptic number.

121313112310211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121313112310211 is an equidigital number, since it uses as much as digits as its factorization.

121313112310211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 121313112310211 its reverse (112013211313121), we get a palindrome (233326323623332).

The spelling of 121313112310211 in words is "one hundred twenty-one trillion, three hundred thirteen billion, one hundred twelve million, three hundred ten thousand, two hundred eleven".