121187117 has 8 divisors (see below), whose sum is σ = 123249600. Its totient is φ = 119140384.

The previous prime is 121187089. The next prime is 121187137. The reversal of 121187117 is 711781121.

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

It is not a de Polignac number, because 121187117 - 2²⁶ = 54078253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121187117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121187137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12128 + ... + 19734.

It is an arithmetic number, because the mean of its divisors is an integer number (15406200).

Almost surely, 2^121187117 is an apocalyptic number.

It is an amenable number.

121187117 is a deficient number, since it is larger than the sum of its proper divisors (2062483).

121187117 is an equidigital number, since it uses as much as digits as its factorization.

121187117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875.

The product of its digits is 784, while the sum is 29.

The square root of 121187117 is about 11008.5020325201. The cubic root of 121187117 is about 494.8635708770.

The spelling of 121187117 in words is "one hundred twenty-one million, one hundred eighty-seven thousand, one hundred seventeen".