231313033 has 16 divisors (see below), whose sum is σ = 281401344. Its totient is φ = 185610240.

The previous prime is 231313031. The next prime is 231313057. The reversal of 231313033 is 330313132.

231313033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231313033 - 2¹ = 231313031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231313033.

It is not an unprimeable number, because it can be changed into a prime (231313031) 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, 17641 + ... + 27817.

It is an arithmetic number, because the mean of its divisors is an integer number (17587584).

Almost surely, 2^231313033 is an apocalyptic number.

It is an amenable number.

231313033 is a deficient number, since it is larger than the sum of its proper divisors (50088311).

231313033 is a wasteful number, since it uses less digits than its factorization.

231313033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 231313033 is about 15208.9786968093. The cubic root of 231313033 is about 613.8562769490.

Adding to 231313033 its reverse (330313132), we get a palindrome (561626165).

Subtracting 231313033 from its reverse (330313132), we obtain a palindrome (99000099).

The spelling of 231313033 in words is "two hundred thirty-one million, three hundred thirteen thousand, thirty-three".