231330033 has 32 divisors (see below), whose sum is σ = 395867520. Its totient is φ = 131950080.

The previous prime is 231330023. The next prime is 231330053. The reversal of 231330033 is 330033132.

It is not a de Polignac number, because 231330033 - 2¹³ = 231321841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231329988 and 231330015.

It is not an unprimeable number, because it can be changed into a prime (231330023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17860 + ... + 27957.

It is an arithmetic number, because the mean of its divisors is an integer number (12370860).

Almost surely, 2^231330033 is an apocalyptic number.

It is an amenable number.

231330033 is a deficient number, since it is larger than the sum of its proper divisors (164537487).

231330033 is a wasteful number, since it uses less digits than its factorization.

231330033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45854 (or 45848 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 231330033 is about 15209.5375669348. The cubic root of 231330033 is about 613.8713147255.

Adding to 231330033 its reverse (330033132), we get a palindrome (561363165).

The spelling of 231330033 in words is "two hundred thirty-one million, three hundred thirty thousand, thirty-three".