231044033133 has 6 divisors (see below), whose sum is σ = 333730270094. Its totient is φ = 154029355416.

The previous prime is 231044033119. The next prime is 231044033141. The reversal of 231044033133 is 331330440132.

231044033133 is a `hidden beast` number, since 23 + 104 + 403 + 3 + 133 = 666.

It can be written as a sum of positive squares in only one way, i.e., 187106423364 + 43937609769 = 432558^2 + 209613^2 .

It is not a de Polignac number, because 231044033133 - 2⁶ = 231044033069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231044033097 and 231044033106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231044031133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12835779610 + ... + 12835779627.

Almost surely, 2^231044033133 is an apocalyptic number.

It is an amenable number.

231044033133 is a deficient number, since it is larger than the sum of its proper divisors (102686236961).

231044033133 is a wasteful number, since it uses less digits than its factorization.

231044033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25671559243 (or 25671559240 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 231044033133 its reverse (331330440132), we get a palindrome (562374473265).

The spelling of 231044033133 in words is "two hundred thirty-one billion, forty-four million, thirty-three thousand, one hundred thirty-three".