100102000121 has 2 divisors, whose sum is σ = 100102000122. Its totient is φ = 100102000120.

The previous prime is 100102000111. The next prime is 100102000127. The reversal of 100102000121 is 121000201001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94147717225 + 5954282896 = 306835^2 + 77164^2 .

It is a cyclic number.

It is not a de Polignac number, because 100102000121 - 2¹⁰ = 100101999097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100102000099 and 100102000108.

It is not a weakly prime, because it can be changed into another prime (100102000127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50051000060 + 50051000061.

It is an arithmetic number, because the mean of its divisors is an integer number (50051000061).

Almost surely, 2^100102000121 is an apocalyptic number.

It is an amenable number.

100102000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100102000121 is an equidigital number, since it uses as much as digits as its factorization.

100102000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100102000121 its reverse (121000201001), we get a palindrome (221102201122).

The spelling of 100102000121 in words is "one hundred billion, one hundred two million, one hundred twenty-one", and thus it is an aban number.