210000122123 has 16 divisors (see below), whose sum is σ = 230061565440. Its totient is φ = 190100820000.

The previous prime is 210000122119. The next prime is 210000122141. The reversal of 210000122123 is 321221000012.

It is a happy number.

210000122123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 210000122123 - 2² = 210000122119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210000122098 and 210000122107.

It is not an unprimeable number, because it can be changed into a prime (210000122183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15584633 + ... + 15598101.

It is an arithmetic number, because the mean of its divisors is an integer number (14378847840).

Almost surely, 2^210000122123 is an apocalyptic number.

210000122123 is a deficient number, since it is larger than the sum of its proper divisors (20061443317).

210000122123 is a wasteful number, since it uses less digits than its factorization.

210000122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19378.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 210000122123 its reverse (321221000012), we get a palindrome (531221122135).

The spelling of 210000122123 in words is "two hundred ten billion, one hundred twenty-two thousand, one hundred twenty-three".