331322223213 has 6 divisors (see below), whose sum is σ = 478576544654. Its totient is φ = 220881482136.

The previous prime is 331322223149. The next prime is 331322223227. The reversal of 331322223213 is 312322223133.

331322223213 is a `hidden beast` number, since 3 + 313 + 2 + 2 + 22 + 321 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 171908085924 + 159414137289 = 414618^2 + 399267^2 .

It is not a de Polignac number, because 331322223213 - 2⁶ = 331322223149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331322221213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18406790170 + ... + 18406790187.

Almost surely, 2^331322223213 is an apocalyptic number.

It is an amenable number.

331322223213 is a deficient number, since it is larger than the sum of its proper divisors (147254321441).

331322223213 is a wasteful number, since it uses less digits than its factorization.

331322223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36813580363 (or 36813580360 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 331322223213 its reverse (312322223133), we get a palindrome (643644446346).

The spelling of 331322223213 in words is "three hundred thirty-one billion, three hundred twenty-two million, two hundred twenty-three thousand, two hundred thirteen".