231338033 has 4 divisors (see below), whose sum is σ = 231440448. Its totient is φ = 231235620.

The previous prime is 231338021. The next prime is 231338039. The reversal of 231338033 is 330833132.

231338033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-231338033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231337993 and 231338011.

It is not an unprimeable number, because it can be changed into a prime (231338039) 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, 47741 + ... + 52362.

It is an arithmetic number, because the mean of its divisors is an integer number (57860112).

Almost surely, 2^231338033 is an apocalyptic number.

It is an amenable number.

231338033 is a deficient number, since it is larger than the sum of its proper divisors (102415).

231338033 is a wasteful number, since it uses less digits than its factorization.

231338033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102414.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 231338033 is about 15209.8005575353. The cubic root of 231338033 is about 613.8783910713.

The spelling of 231338033 in words is "two hundred thirty-one million, three hundred thirty-eight thousand, thirty-three".