331204223 has 4 divisors (see below), whose sum is σ = 378519120. Its totient is φ = 283889328.

The previous prime is 331204207. The next prime is 331204241. The reversal of 331204223 is 322402133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331204223 - 2⁴ = 331204207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331204195 and 331204204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331204823) 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, 23657438 + ... + 23657451.

It is an arithmetic number, because the mean of its divisors is an integer number (94629780).

Almost surely, 2^331204223 is an apocalyptic number.

331204223 is a deficient number, since it is larger than the sum of its proper divisors (47314897).

331204223 is an equidigital number, since it uses as much as digits as its factorization.

331204223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47314896.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 331204223 is about 18199.0170888430. The cubic root of 331204223 is about 691.8818774122.

Adding to 331204223 its reverse (322402133), we get a palindrome (653606356).

The spelling of 331204223 in words is "three hundred thirty-one million, two hundred four thousand, two hundred twenty-three".