231023200133 has 4 divisors (see below), whose sum is σ = 252025309248. Its totient is φ = 210021091020.

The previous prime is 231023200097. The next prime is 231023200151. The reversal of 231023200133 is 331002320132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231023200133 - 2¹⁰ = 231023199109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231023200033) 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, 10501054541 + ... + 10501054562.

It is an arithmetic number, because the mean of its divisors is an integer number (63006327312).

Almost surely, 2^231023200133 is an apocalyptic number.

It is an amenable number.

231023200133 is a deficient number, since it is larger than the sum of its proper divisors (21002109115).

231023200133 is a wasteful number, since it uses less digits than its factorization.

231023200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21002109114.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 231023200133 its reverse (331002320132), we get a palindrome (562025520265).

The spelling of 231023200133 in words is "two hundred thirty-one billion, twenty-three million, two hundred thousand, one hundred thirty-three".