101000009999897 has 2 divisors, whose sum is σ = 101000009999898. Its totient is φ = 101000009999896.

The previous prime is 101000009999891. The next prime is 101000010000073. The reversal of 101000009999897 is 798999900000101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99163277621776 + 1836732378121 = 9958076^2 + 1355261^2 .

It is a cyclic number.

It is not a de Polignac number, because 101000009999897 - 2¹⁶ = 101000009934361 is a prime.

It is not a weakly prime, because it can be changed into another prime (101000009999891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500004999948 + 50500004999949.

It is an arithmetic number, because the mean of its divisors is an integer number (50500004999949).

Almost surely, 2^{101000009999897} is an apocalyptic number.

It is an amenable number.

101000009999897 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000009999897 is an equidigital number, since it uses as much as digits as its factorization.

101000009999897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 62.

Adding to 101000009999897 its reverse (798999900000101), we get a palindrome (899999909999998).

The spelling of 101000009999897 in words is "one hundred one trillion, nine million, nine hundred ninety-nine thousand, eight hundred ninety-seven".