210120220123 has 8 divisors (see below), whose sum is σ = 229235286960. Its totient is φ = 191007358080.

The previous prime is 210120220109. The next prime is 210120220129. The reversal of 210120220123 is 321022021012.

It is a happy number.

210120220123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210120220123 - 2⁵ = 210120220091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210120220097 and 210120220106.

It is not an unprimeable number, because it can be changed into a prime (210120220129) 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 7 ways as a sum of consecutive naturals, for example, 348690 + ... + 736087.

It is an arithmetic number, because the mean of its divisors is an integer number (28654410870).

Almost surely, 2^210120220123 is an apocalyptic number.

210120220123 is a deficient number, since it is larger than the sum of its proper divisors (19115066837).

210120220123 is a wasteful number, since it uses less digits than its factorization.

210120220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102397.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210120220123 its reverse (321022021012), we get a palindrome (531142241135).

The spelling of 210120220123 in words is "two hundred ten billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-three".