331020223 has 4 divisors (see below), whose sum is σ = 348442360. Its totient is φ = 313598088.

The previous prime is 331020169. The next prime is 331020233. The reversal of 331020223 is 322020133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322020133 = 4409 ⋅73037.

It is a cyclic number.

It is not a de Polignac number, because 331020223 - 2¹⁷ = 330889151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331020197 and 331020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331020233) 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, 8711040 + ... + 8711077.

It is an arithmetic number, because the mean of its divisors is an integer number (87110590).

Almost surely, 2^331020223 is an apocalyptic number.

331020223 is a deficient number, since it is larger than the sum of its proper divisors (17422137).

331020223 is a wasteful number, since it uses less digits than its factorization.

331020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17422136.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 331020223 is about 18193.9611684757. The cubic root of 331020223 is about 691.7537290385.

Adding to 331020223 its reverse (322020133), we get a palindrome (653040356).

The spelling of 331020223 in words is "three hundred thirty-one million, twenty thousand, two hundred twenty-three".