200123230101 has 16 divisors (see below), whose sum is σ = 273062608896. Its totient is φ = 130300266096.

The previous prime is 200123230067. The next prime is 200123230141. The reversal of 200123230101 is 101032321002.

It is a de Polignac number, because none of the positive numbers 2^k-200123230101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200123230141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381356 + ... + 1519338.

It is an arithmetic number, because the mean of its divisors is an integer number (17066413056).

Almost surely, 2^200123230101 is an apocalyptic number.

It is an amenable number.

200123230101 is a deficient number, since it is larger than the sum of its proper divisors (72939378795).

200123230101 is a wasteful number, since it uses less digits than its factorization.

200123230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149272.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 200123230101 its reverse (101032321002), we get a palindrome (301155551103).

Subtracting from 200123230101 its reverse (101032321002), we obtain a palindrome (99090909099).

The spelling of 200123230101 in words is "two hundred billion, one hundred twenty-three million, two hundred thirty thousand, one hundred one".