21112102000103 has 2 divisors, whose sum is σ = 21112102000104. Its totient is φ = 21112102000102.

The previous prime is 21112102000001. The next prime is 21112102000111. The reversal of 21112102000103 is 30100020121112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21112102000103 - 2²⁰ = 21112100951527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112108000103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556051000051 + 10556051000052.

It is an arithmetic number, because the mean of its divisors is an integer number (10556051000052).

Almost surely, 2^{21112102000103} is an apocalyptic number.

21112102000103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112102000103 is an equidigital number, since it uses as much as digits as its factorization.

21112102000103 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 14.

Adding to 21112102000103 its reverse (30100020121112), we get a palindrome (51212122121215).

The spelling of 21112102000103 in words is "twenty-one trillion, one hundred twelve billion, one hundred two million, one hundred three", and thus it is an aban number.