123045211 has 2 divisors, whose sum is σ = 123045212. Its totient is φ = 123045210.

The previous prime is 123045187. The next prime is 123045217. The reversal of 123045211 is 112540321.

It is a strong prime.

It is an emirp because it is prime and its reverse (112540321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123045211 - 2⁹ = 123044699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123045217) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61522605 + 61522606.

It is an arithmetic number, because the mean of its divisors is an integer number (61522606).

Almost surely, 2^123045211 is an apocalyptic number.

123045211 is a deficient number, since it is larger than the sum of its proper divisors (1).

123045211 is an equidigital number, since it uses as much as digits as its factorization.

123045211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123045211 is about 11092.5745884353. The cubic root of 123045211 is about 497.3799088940.

Adding to 123045211 its reverse (112540321), we get a palindrome (235585532).

It can be divided in two parts, 123045 and 211, that added together give a triangular number (123256 = T₄₉₆).

The spelling of 123045211 in words is "one hundred twenty-three million, forty-five thousand, two hundred eleven".