100099999697 has 2 divisors, whose sum is σ = 100099999698. Its totient is φ = 100099999696.

The previous prime is 100099999679. The next prime is 100099999751. The reversal of 100099999697 is 796999990001.

Together with previous prime (100099999679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100098835456 + 1164241 = 316384^2 + 1079^2 .

It is a cyclic number.

It is not a de Polignac number, because 100099999697 - 2¹² = 100099995601 is a prime.

It is not a weakly prime, because it can be changed into another prime (100099999997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50049999848 + 50049999849.

It is an arithmetic number, because the mean of its divisors is an integer number (50049999849).

Almost surely, 2^100099999697 is an apocalyptic number.

It is an amenable number.

100099999697 is a deficient number, since it is larger than the sum of its proper divisors (1).

100099999697 is an equidigital number, since it uses as much as digits as its factorization.

100099999697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22320522, while the sum is 68.

The spelling of 100099999697 in words is "one hundred billion, ninety-nine million, nine hundred ninety-nine thousand, six hundred ninety-seven".