2100121000163 has 2 divisors, whose sum is σ = 2100121000164. Its totient is φ = 2100121000162.

The previous prime is 2100121000141. The next prime is 2100121000171. The reversal of 2100121000163 is 3610001210012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100121000163 - 2⁶ = 2100121000099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100121000193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060500081 + 1050060500082.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060500082).

Almost surely, 2^{2100121000163} is an apocalyptic number.

2100121000163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100121000163 is an equidigital number, since it uses as much as digits as its factorization.

2100121000163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2100121000163 its reverse (3610001210012), we get a palindrome (5710122210175).

The spelling of 2100121000163 in words is "two trillion, one hundred billion, one hundred twenty-one million, one hundred sixty-three", and thus it is an aban number.