121670117 has 2 divisors, whose sum is σ = 121670118. Its totient is φ = 121670116.

The previous prime is 121670093. The next prime is 121670119. The reversal of 121670117 is 711076121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86694721 + 34975396 = 9311^2 + 5914^2 .

It is a cyclic number.

It is not a de Polignac number, because 121670117 - 2¹⁴ = 121653733 is a prime.

Together with 121670119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121670119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60835058 + 60835059.

It is an arithmetic number, because the mean of its divisors is an integer number (60835059).

Almost surely, 2^121670117 is an apocalyptic number.

It is an amenable number.

121670117 is a deficient number, since it is larger than the sum of its proper divisors (1).

121670117 is an equidigital number, since it uses as much as digits as its factorization.

121670117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 26.

The square root of 121670117 is about 11030.4178071368. The cubic root of 121670117 is about 495.5201375408.

The spelling of 121670117 in words is "one hundred twenty-one million, six hundred seventy thousand, one hundred seventeen".