123868211 has 2 divisors, whose sum is σ = 123868212. Its totient is φ = 123868210.

The previous prime is 123868207. The next prime is 123868231. The reversal of 123868211 is 112868321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123868211 - 2² = 123868207 is a prime.

It is not a weakly prime, because it can be changed into another prime (123868231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61934105 + 61934106.

It is an arithmetic number, because the mean of its divisors is an integer number (61934106).

Almost surely, 2^123868211 is an apocalyptic number.

123868211 is a deficient number, since it is larger than the sum of its proper divisors (1).

123868211 is an equidigital number, since it uses as much as digits as its factorization.

123868211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

The square root of 123868211 is about 11129.6096517353. The cubic root of 123868211 is about 498.4863704751.

The spelling of 123868211 in words is "one hundred twenty-three million, eight hundred sixty-eight thousand, two hundred eleven".