211210000123 has 2 divisors, whose sum is σ = 211210000124. Its totient is φ = 211210000122.

The previous prime is 211210000117. The next prime is 211210000163. The reversal of 211210000123 is 321000012112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211210000123 - 2²⁵ = 211176445691 is a prime.

It is not a weakly prime, because it can be changed into another prime (211210000163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605000061 + 105605000062.

It is an arithmetic number, because the mean of its divisors is an integer number (105605000062).

Almost surely, 2^211210000123 is an apocalyptic number.

211210000123 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210000123 is an equidigital number, since it uses as much as digits as its factorization.

211210000123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 211210000123 its reverse (321000012112), we get a palindrome (532210012235).

The spelling of 211210000123 in words is "two hundred eleven billion, two hundred ten million, one hundred twenty-three", and thus it is an aban number.