211121020000123 has 8 divisors (see below), whose sum is σ = 223540585464240. Its totient is φ = 198701530306560.

The previous prime is 211121020000069. The next prime is 211121020000139. The reversal of 211121020000123 is 321000020121112.

211121020000123 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 a cyclic number.

It is not a de Polignac number, because 211121020000123 - 2¹⁷ = 211121019869051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211121020000097 and 211121020000106.

It is not an unprimeable number, because it can be changed into a prime (211121020004123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13155573 + ... + 24398998.

It is an arithmetic number, because the mean of its divisors is an integer number (27942573183030).

Almost surely, 2^{211121020000123} is an apocalyptic number.

211121020000123 is a deficient number, since it is larger than the sum of its proper divisors (12419565464117).

211121020000123 is a wasteful number, since it uses less digits than its factorization.

211121020000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37885277.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211121020000123 its reverse (321000020121112), we get a palindrome (532121040121235).

The spelling of 211121020000123 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty million, one hundred twenty-three", and thus it is an aban number.