231330220133 has 8 divisors (see below), whose sum is σ = 234491906880. Its totient is φ = 228189682240.

The previous prime is 231330220127. The next prime is 231330220183. The reversal of 231330220133 is 331022033132.

231330220133 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 231330220133 - 2¹⁶ = 231330154597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231330220099 and 231330220108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231330220183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5265188 + ... + 5308941.

It is an arithmetic number, because the mean of its divisors is an integer number (29311488360).

Almost surely, 2^231330220133 is an apocalyptic number.

It is an amenable number.

231330220133 is a deficient number, since it is larger than the sum of its proper divisors (3161686747).

231330220133 is a wasteful number, since it uses less digits than its factorization.

231330220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10574427.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231330220133 its reverse (331022033132), we get a palindrome (562352253265).

The spelling of 231330220133 in words is "two hundred thirty-one billion, three hundred thirty million, two hundred twenty thousand, one hundred thirty-three".