331332223 has 4 divisors (see below), whose sum is σ = 331428880. Its totient is φ = 331235568.

The previous prime is 331332173. The next prime is 331332257. The reversal of 331332223 is 322233133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322233133 = 89 ⋅3620597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331332223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331332194 and 331332203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331332293) 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, 42990 + ... + 50107.

It is an arithmetic number, because the mean of its divisors is an integer number (82857220).

Almost surely, 2^331332223 is an apocalyptic number.

331332223 is a deficient number, since it is larger than the sum of its proper divisors (96657).

331332223 is an equidigital number, since it uses as much as digits as its factorization.

331332223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96656.

The product of its digits is 1944, while the sum is 22.

The square root of 331332223 is about 18202.5334225761. The cubic root of 331332223 is about 691.9709961169.

Adding to 331332223 its reverse (322233133), we get a palindrome (653565356).

The spelling of 331332223 in words is "three hundred thirty-one million, three hundred thirty-two thousand, two hundred twenty-three".