10099106861 has 2 divisors, whose sum is σ = 10099106862. Its totient is φ = 10099106860.

The previous prime is 10099106833. The next prime is 10099106863. The reversal of 10099106861 is 16860199001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10098240100 + 866761 = 100490^2 + 931^2 .

It is an emirp because it is prime and its reverse (16860199001) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 19890166001 and 10066109891.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10099106861 is a prime.

Together with 10099106863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10099106863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5049553430 + 5049553431.

It is an arithmetic number, because the mean of its divisors is an integer number (5049553431).

Almost surely, 2^10099106861 is an apocalyptic number.

It is an amenable number.

10099106861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10099106861 is an equidigital number, since it uses as much as digits as its factorization.

10099106861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 10099106861 in words is "ten billion, ninety-nine million, one hundred six thousand, eight hundred sixty-one".