121371317 has 2 divisors, whose sum is σ = 121371318. Its totient is φ = 121371316.

The previous prime is 121371287. The next prime is 121371323. The reversal of 121371317 is 713173121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118940836 + 2430481 = 10906^2 + 1559^2 .

It is a cyclic number.

It is not a de Polignac number, because 121371317 - 2¹² = 121367221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121371337) 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, 60685658 + 60685659.

It is an arithmetic number, because the mean of its divisors is an integer number (60685659).

Almost surely, 2^121371317 is an apocalyptic number.

It is an amenable number.

121371317 is a deficient number, since it is larger than the sum of its proper divisors (1).

121371317 is an equidigital number, since it uses as much as digits as its factorization.

121371317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882, while the sum is 26.

The square root of 121371317 is about 11016.8651167199. The cubic root of 121371317 is about 495.1141688158.

The spelling of 121371317 in words is "one hundred twenty-one million, three hundred seventy-one thousand, three hundred seventeen".