117109121 has 2 divisors, whose sum is σ = 117109122. Its totient is φ = 117109120.

The previous prime is 117109087. The next prime is 117109129. The reversal of 117109121 is 121901711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93876721 + 23232400 = 9689^2 + 4820^2 .

It is a cyclic number.

It is not a de Polignac number, because 117109121 - 2¹⁴ = 117092737 is a prime.

It is not a weakly prime, because it can be changed into another prime (117109129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58554560 + 58554561.

It is an arithmetic number, because the mean of its divisors is an integer number (58554561).

Almost surely, 2^117109121 is an apocalyptic number.

It is an amenable number.

117109121 is a deficient number, since it is larger than the sum of its proper divisors (1).

117109121 is an equidigital number, since it uses as much as digits as its factorization.

117109121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 23.

The square root of 117109121 is about 10821.6967708396. The cubic root of 117109121 is about 489.2493309344.

The spelling of 117109121 in words is "one hundred seventeen million, one hundred nine thousand, one hundred twenty-one".