100002101873 has 2 divisors, whose sum is σ = 100002101874. Its totient is φ = 100002101872.

The previous prime is 100002101869. The next prime is 100002101893. The reversal of 100002101873 is 378101200001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72257203249 + 27744898624 = 268807^2 + 166568^2 .

It is a cyclic number.

It is not a de Polignac number, because 100002101873 - 2² = 100002101869 is a prime.

It is not a weakly prime, because it can be changed into another prime (100002101863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001050936 + 50001050937.

It is an arithmetic number, because the mean of its divisors is an integer number (50001050937).

Almost surely, 2^100002101873 is an apocalyptic number.

It is an amenable number.

100002101873 is a deficient number, since it is larger than the sum of its proper divisors (1).

100002101873 is an equidigital number, since it uses as much as digits as its factorization.

100002101873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 100002101873 its reverse (378101200001), we get a palindrome (478103301874).

The spelling of 100002101873 in words is "one hundred billion, two million, one hundred one thousand, eight hundred seventy-three".