212311103 has 2 divisors, whose sum is σ = 212311104. Its totient is φ = 212311102.

The previous prime is 212311093. The next prime is 212311129. The reversal of 212311103 is 301113212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212311103 - 2⁶ = 212311039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212311153) 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, 106155551 + 106155552.

It is an arithmetic number, because the mean of its divisors is an integer number (106155552).

Almost surely, 2^212311103 is an apocalyptic number.

212311103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212311103 is an equidigital number, since it uses as much as digits as its factorization.

212311103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 212311103 is about 14570.8991829605. The cubic root of 212311103 is about 596.5647236272.

Adding to 212311103 its reverse (301113212), we get a palindrome (513424315).

The spelling of 212311103 in words is "two hundred twelve million, three hundred eleven thousand, one hundred three".