123211303 has 2 divisors, whose sum is σ = 123211304. Its totient is φ = 123211302.

The previous prime is 123211301. The next prime is 123211307. The reversal of 123211303 is 303112321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123211303 - 2¹ = 123211301 is a prime.

Together with 123211301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123211301) 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, 61605651 + 61605652.

It is an arithmetic number, because the mean of its divisors is an integer number (61605652).

Almost surely, 2^123211303 is an apocalyptic number.

123211303 is a deficient number, since it is larger than the sum of its proper divisors (1).

123211303 is an equidigital number, since it uses as much as digits as its factorization.

123211303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 123211303 is about 11100.0586935385. The cubic root of 123211303 is about 497.6036035842.

Adding to 123211303 its reverse (303112321), we get a palindrome (426323624).

The spelling of 123211303 in words is "one hundred twenty-three million, two hundred eleven thousand, three hundred three".