212100102103 has 2 divisors, whose sum is σ = 212100102104. Its totient is φ = 212100102102.

The previous prime is 212100102091. The next prime is 212100102131. The reversal of 212100102103 is 301201001212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212100102103 - 2¹³ = 212100093911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212100102163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050051051 + 106050051052.

It is an arithmetic number, because the mean of its divisors is an integer number (106050051052).

Almost surely, 2^212100102103 is an apocalyptic number.

212100102103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100102103 is an equidigital number, since it uses as much as digits as its factorization.

212100102103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 212100102103 its reverse (301201001212), we get a palindrome (513301103315).

The spelling of 212100102103 in words is "two hundred twelve billion, one hundred million, one hundred two thousand, one hundred three".