100012010120917 has 2 divisors, whose sum is σ = 100012010120918. Its totient is φ = 100012010120916.

The previous prime is 100012010120879. The next prime is 100012010121031. The reversal of 100012010120917 is 719021010210001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57755652881796 + 42256357239121 = 7599714^2 + 6500489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100012010120917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100012010120891 and 100012010120900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100012010120317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50006005060458 + 50006005060459.

It is an arithmetic number, because the mean of its divisors is an integer number (50006005060459).

Almost surely, 2^{100012010120917} is an apocalyptic number.

It is an amenable number.

100012010120917 is a deficient number, since it is larger than the sum of its proper divisors (1).

100012010120917 is an equidigital number, since it uses as much as digits as its factorization.

100012010120917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 100012010120917 its reverse (719021010210001), we get a palindrome (819033020330918).

The spelling of 100012010120917 in words is "one hundred trillion, twelve billion, ten million, one hundred twenty thousand, nine hundred seventeen".