211200123 has 8 divisors (see below), whose sum is σ = 282270736. Its totient is φ = 140464800.

The previous prime is 211200103. The next prime is 211200149. The reversal of 211200123 is 321002112.

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

It is not a de Polignac number, because 211200123 - 2⁵ = 211200091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211200099 and 211200108.

It is not an unprimeable number, because it can be changed into a prime (211200103) 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, 82348 + ... + 84873.

It is an arithmetic number, because the mean of its divisors is an integer number (35283842).

Almost surely, 2^211200123 is an apocalyptic number.

211200123 is a deficient number, since it is larger than the sum of its proper divisors (71070613).

211200123 is a wasteful number, since it uses less digits than its factorization.

211200123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167645.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 211200123 is about 14532.7259314968. The cubic root of 211200123 is about 595.5223367895.

Adding to 211200123 its reverse (321002112), we get a palindrome (532202235).

The spelling of 211200123 in words is "two hundred eleven million, two hundred thousand, one hundred twenty-three".