123443203211 has 2 divisors, whose sum is σ = 123443203212. Its totient is φ = 123443203210.

The previous prime is 123443203183. The next prime is 123443203229. The reversal of 123443203211 is 112302344321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123443203211 - 2¹⁰ = 123443202187 is a prime.

It is not a weakly prime, because it can be changed into another prime (123443283211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61721601605 + 61721601606.

It is an arithmetic number, because the mean of its divisors is an integer number (61721601606).

Almost surely, 2^123443203211 is an apocalyptic number.

123443203211 is a deficient number, since it is larger than the sum of its proper divisors (1).

123443203211 is an equidigital number, since it uses as much as digits as its factorization.

123443203211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 123443203211 its reverse (112302344321), we get a palindrome (235745547532).

The spelling of 123443203211 in words is "one hundred twenty-three billion, four hundred forty-three million, two hundred three thousand, two hundred eleven".