212100010103 has 2 divisors, whose sum is σ = 212100010104. Its totient is φ = 212100010102.

The previous prime is 212100010093. The next prime is 212100010117. The reversal of 212100010103 is 301010001212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212100010103 - 2²⁴ = 212083232887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212100610103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050005051 + 106050005052.

It is an arithmetic number, because the mean of its divisors is an integer number (106050005052).

Almost surely, 2^212100010103 is an apocalyptic number.

212100010103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100010103 is an equidigital number, since it uses as much as digits as its factorization.

212100010103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 212100010103 its reverse (301010001212), we get a palindrome (513110011315).

The spelling of 212100010103 in words is "two hundred twelve billion, one hundred million, ten thousand, one hundred three".