306506331313 has 32 divisors (see below), whose sum is σ = 394769088000. Its totient is φ = 231301357056.

The previous prime is 306506331301. The next prime is 306506331317. The reversal of 306506331313 is 313133605603.

It is not a de Polignac number, because 306506331313 - 2³³ = 297916396721 is a prime.

It is a super-2 number, since 2×306506331313² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (306506331317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520653 + ... + 940261.

It is an arithmetic number, because the mean of its divisors is an integer number (12336534000).

Almost surely, 2^306506331313 is an apocalyptic number.

It is an amenable number.

306506331313 is a deficient number, since it is larger than the sum of its proper divisors (88262756687).

306506331313 is a wasteful number, since it uses less digits than its factorization.

306506331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420001.

The product of its (nonzero) digits is 43740, while the sum is 34.

Adding to 306506331313 its reverse (313133605603), we get a palindrome (619639936916).

The spelling of 306506331313 in words is "three hundred six billion, five hundred six million, three hundred thirty-one thousand, three hundred thirteen".