1000020120097 has 2 divisors, whose sum is σ = 1000020120098. Its totient is φ = 1000020120096.

The previous prime is 1000020120083. The next prime is 1000020120131. The reversal of 1000020120097 is 7900210200001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526344446016 + 473675674081 = 725496^2 + 688241^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000020120097 - 2¹⁵ = 1000020087329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000020120037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010060048 + 500010060049.

It is an arithmetic number, because the mean of its divisors is an integer number (500010060049).

Almost surely, 2^{1000020120097} is an apocalyptic number.

It is an amenable number.

1000020120097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000020120097 is an equidigital number, since it uses as much as digits as its factorization.

1000020120097 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 22.

Adding to 1000020120097 its reverse (7900210200001), we get a palindrome (8900230320098).

The spelling of 1000020120097 in words is "one trillion, twenty million, one hundred twenty thousand, ninety-seven".