211110021103 has 2 divisors, whose sum is σ = 211110021104. Its totient is φ = 211110021102.

The previous prime is 211110021077. The next prime is 211110021131. The reversal of 211110021103 is 301120011112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211110021103 - 2⁹ = 211110020591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211110025103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105555010551 + 105555010552.

It is an arithmetic number, because the mean of its divisors is an integer number (105555010552).

Almost surely, 2^211110021103 is an apocalyptic number.

211110021103 is a deficient number, since it is larger than the sum of its proper divisors (1).

211110021103 is an equidigital number, since it uses as much as digits as its factorization.

211110021103 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 13.

Adding to 211110021103 its reverse (301120011112), we get a palindrome (512230032215).

Subtracting 211110021103 from its reverse (301120011112), we obtain a palindrome (90009990009).

The spelling of 211110021103 in words is "two hundred eleven billion, one hundred ten million, twenty-one thousand, one hundred three".