121371717 has 8 divisors (see below), whose sum is σ = 162668224. Its totient is φ = 80494848.

The previous prime is 121371709. The next prime is 121371737. The reversal of 121371717 is 717173121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121371717 - 2³ = 121371709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121371737) 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 7 ways as a sum of consecutive naturals, for example, 104233 + ... + 105390.

It is an arithmetic number, because the mean of its divisors is an integer number (20333528).

Almost surely, 2^121371717 is an apocalyptic number.

It is an amenable number.

121371717 is a deficient number, since it is larger than the sum of its proper divisors (41296507).

121371717 is a wasteful number, since it uses less digits than its factorization.

121371717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209819.

The product of its digits is 2058, while the sum is 30.

The square root of 121371717 is about 11016.8832706896. The cubic root of 121371717 is about 495.1147127264.

The spelling of 121371717 in words is "one hundred twenty-one million, three hundred seventy-one thousand, seven hundred seventeen".