121343317 has 2 divisors, whose sum is σ = 121343318. Its totient is φ = 121343316.

The previous prime is 121343311. The next prime is 121343323. The reversal of 121343317 is 713343121.

It is a balanced prime because it is at equal distance from previous prime (121343311) and next prime (121343323).

It can be written as a sum of positive squares in only one way, i.e., 93528241 + 27815076 = 9671^2 + 5274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121343317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121343291 and 121343300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121343311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60671658 + 60671659.

It is an arithmetic number, because the mean of its divisors is an integer number (60671659).

Almost surely, 2^121343317 is an apocalyptic number.

It is an amenable number.

121343317 is a deficient number, since it is larger than the sum of its proper divisors (1).

121343317 is an equidigital number, since it uses as much as digits as its factorization.

121343317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 25.

The square root of 121343317 is about 11015.5942644961. The cubic root of 121343317 is about 495.0760921013.

Adding to 121343317 its reverse (713343121), we get a palindrome (834686438).

It can be divided in two parts, 12134 and 3317, that added together give a palindrome (15451).

The spelling of 121343317 in words is "one hundred twenty-one million, three hundred forty-three thousand, three hundred seventeen".