117101021 has 2 divisors, whose sum is σ = 117101022. Its totient is φ = 117101020.

The previous prime is 117101011. The next prime is 117101051. The reversal of 117101021 is 120101711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111408025 + 5692996 = 10555^2 + 2386^2 .

It is a cyclic number.

It is not a de Polignac number, because 117101021 - 2¹⁴ = 117084637 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117100987 and 117101005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117101011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58550510 + 58550511.

It is an arithmetic number, because the mean of its divisors is an integer number (58550511).

Almost surely, 2^117101021 is an apocalyptic number.

It is an amenable number.

117101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

117101021 is an equidigital number, since it uses as much as digits as its factorization.

117101021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 117101021 is about 10821.3225162177. The cubic root of 117101021 is about 489.2380508254.

Adding to 117101021 its reverse (120101711), we get a palindrome (237202732).

The spelling of 117101021 in words is "one hundred seventeen million, one hundred one thousand, twenty-one".