121307117 has 4 divisors (see below), whose sum is σ = 122484960. Its totient is φ = 120129276.

The previous prime is 121307099. The next prime is 121307119. The reversal of 121307117 is 711703121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711703121 = 19 ⋅37458059.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121307117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121307092 and 121307101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121307119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588767 + ... + 588972.

It is an arithmetic number, because the mean of its divisors is an integer number (30621240).

Almost surely, 2^121307117 is an apocalyptic number.

It is an amenable number.

121307117 is a deficient number, since it is larger than the sum of its proper divisors (1177843).

121307117 is a wasteful number, since it uses less digits than its factorization.

121307117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177842.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 121307117 is about 11013.9510167787. The cubic root of 121307117 is about 495.0268556664.

The spelling of 121307117 in words is "one hundred twenty-one million, three hundred seven thousand, one hundred seventeen".