306323445213 has 36 divisors (see below), whose sum is σ = 470376498228. Its totient is φ = 192059504640.

The previous prime is 306323445163. The next prime is 306323445287. The reversal of 306323445213 is 312544323603.

306323445213 is a `hidden beast` number, since 3 + 0 + 632 + 3 + 4 + 4 + 5 + 2 + 13 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 13032962244 + 293290482969 = 114162^2 + 541563^2 .

It is not a de Polignac number, because 306323445213 - 2⁸ = 306323444957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306323441213) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3496695 + ... + 3583227.

Almost surely, 2^306323445213 is an apocalyptic number.

It is an amenable number.

306323445213 is a deficient number, since it is larger than the sum of its proper divisors (164053053015).

306323445213 is a wasteful number, since it uses less digits than its factorization.

306323445213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87934 (or 87914 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 306323445213 its reverse (312544323603), we get a palindrome (618867768816).

The spelling of 306323445213 in words is "three hundred six billion, three hundred twenty-three million, four hundred forty-five thousand, two hundred thirteen".