121118117 has 2 divisors, whose sum is σ = 121118118. Its totient is φ = 121118116.

The previous prime is 121118099. The next prime is 121118159. The reversal of 121118117 is 711811121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74891716 + 46226401 = 8654^2 + 6799^2 .

It is a cyclic number.

It is not a de Polignac number, because 121118117 - 2⁸ = 121117861 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121118092 and 121118101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121118317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60559058 + 60559059.

It is an arithmetic number, because the mean of its divisors is an integer number (60559059).

Almost surely, 2^121118117 is an apocalyptic number.

It is an amenable number.

121118117 is a deficient number, since it is larger than the sum of its proper divisors (1).

121118117 is an equidigital number, since it uses as much as digits as its factorization.

121118117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112, while the sum is 23.

The square root of 121118117 is about 11005.3676449267. The cubic root of 121118117 is about 494.7696333096.

Adding to 121118117 its reverse (711811121), we get a palindrome (832929238).

The spelling of 121118117 in words is "one hundred twenty-one million, one hundred eighteen thousand, one hundred seventeen".