1210000117 has 2 divisors, whose sum is σ = 1210000118. Its totient is φ = 1210000116.

The previous prime is 1210000111. The next prime is 1210000133. The reversal of 1210000117 is 7110000121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1206103441 + 3896676 = 34729^2 + 1974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210000117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210000097 and 1210000106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210000111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605000058 + 605000059.

It is an arithmetic number, because the mean of its divisors is an integer number (605000059).

Almost surely, 2^1210000117 is an apocalyptic number.

It is an amenable number.

1210000117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210000117 is an equidigital number, since it uses as much as digits as its factorization.

1210000117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 1210000117 is about 34785.0559436089. The cubic root of 1210000117 is about 1065.6022711125.

Adding to 1210000117 its reverse (7110000121), we get a palindrome (8320000238).

The spelling of 1210000117 in words is "one billion, two hundred ten million, one hundred seventeen", and thus it is an aban number.