331230233 has 4 divisors (see below), whose sum is σ = 334161588. Its totient is φ = 328298880.

The previous prime is 331230209. The next prime is 331230269. The reversal of 331230233 is 332032133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332032133 = 10301 ⋅32233.

It can be written as a sum of positive squares in 2 ways, for example, as 75134224 + 256096009 = 8668^2 + 16003^2 .

It is a cyclic number.

It is not a de Polignac number, because 331230233 - 2⁶ = 331230169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331230203) 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, 1465508 + ... + 1465733.

It is an arithmetic number, because the mean of its divisors is an integer number (83540397).

Almost surely, 2^331230233 is an apocalyptic number.

It is an amenable number.

331230233 is a deficient number, since it is larger than the sum of its proper divisors (2931355).

331230233 is a wasteful number, since it uses less digits than its factorization.

331230233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931354.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 331230233 is about 18199.7316738462. The cubic root of 331230233 is about 691.8999884701.

Adding to 331230233 its reverse (332032133), we get a palindrome (663262366).

The spelling of 331230233 in words is "three hundred thirty-one million, two hundred thirty thousand, two hundred thirty-three".