100000999601 has 2 divisors, whose sum is σ = 100000999602. Its totient is φ = 100000999600.

The previous prime is 100000999583. The next prime is 100000999639. The reversal of 100000999601 is 106999000001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89880639601 + 10120360000 = 299801^2 + 100600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000999601 is a prime.

It is not a weakly prime, because it can be changed into another prime (100000399601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000499800 + 50000499801.

It is an arithmetic number, because the mean of its divisors is an integer number (50000499801).

Almost surely, 2^100000999601 is an apocalyptic number.

It is an amenable number.

100000999601 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000999601 is an equidigital number, since it uses as much as digits as its factorization.

100000999601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

Adding to 100000999601 its reverse (106999000001), we get a palindrome (206999999602).

The spelling of 100000999601 in words is "one hundred billion, nine hundred ninety-nine thousand, six hundred one".