121700313 has 20 divisors (see below), whose sum is σ = 207771520. Its totient is φ = 69542712.

The previous prime is 121700309. The next prime is 121700317. The reversal of 121700313 is 313007121.

It is an interprime number because it is at equal distance from previous prime (121700309) and next prime (121700317).

It is not a de Polignac number, because 121700313 - 2² = 121700309 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (121700317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106753 + ... + 107886.

It is an arithmetic number, because the mean of its divisors is an integer number (10388576).

Almost surely, 2^121700313 is an apocalyptic number.

It is an amenable number.

121700313 is a deficient number, since it is larger than the sum of its proper divisors (86071207).

121700313 is an equidigital number, since it uses as much as digits as its factorization.

121700313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214658 (or 214649 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 121700313 is about 11031.7864827053. The cubic root of 121700313 is about 495.5611267577.

Adding to 121700313 its reverse (313007121), we get a palindrome (434707434).

The spelling of 121700313 in words is "one hundred twenty-one million, seven hundred thousand, three hundred thirteen".