21114103 has 2 divisors, whose sum is σ = 21114104. Its totient is φ = 21114102.

The previous prime is 21114097. The next prime is 21114127. The reversal of 21114103 is 30141112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21114103 - 2⁹ = 21113591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21114143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557051 + 10557052.

It is an arithmetic number, because the mean of its divisors is an integer number (10557052).

Almost surely, 2^21114103 is an apocalyptic number.

21114103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114103 is an equidigital number, since it uses as much as digits as its factorization.

21114103 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.

The square root of 21114103 is about 4595.0084874786. The cubic root of 21114103 is about 276.3912003121.

Adding to 21114103 its reverse (30141112), we get a palindrome (51255215).

The spelling of 21114103 in words is "twenty-one million, one hundred fourteen thousand, one hundred three".