211200010123 has 4 divisors (see below), whose sum is σ = 211353835248. Its totient is φ = 211046185000.

The previous prime is 211200010003. The next prime is 211200010163. The reversal of 211200010123 is 321010002112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211200010123 - 2⁹ = 211200009611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211200010163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76910503 + ... + 76913248.

It is an arithmetic number, because the mean of its divisors is an integer number (52838458812).

Almost surely, 2^211200010123 is an apocalyptic number.

211200010123 is a deficient number, since it is larger than the sum of its proper divisors (153825125).

211200010123 is a wasteful number, since it uses less digits than its factorization.

211200010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153825124.

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

Adding to 211200010123 its reverse (321010002112), we get a palindrome (532210012235).

The spelling of 211200010123 in words is "two hundred eleven billion, two hundred million, ten thousand, one hundred twenty-three".