309903272713 has 8 divisors (see below), whose sum is σ = 310383524520. Its totient is φ = 309423214080.

The previous prime is 309903272711. The next prime is 309903272729. The reversal of 309903272713 is 317272309903.

It can be written as a sum of positive squares in 4 ways, for example, as 46936355904 + 262966916809 = 216648^2 + 512803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 309903272713 - 2¹ = 309903272711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309903272711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3346093 + ... + 3437461.

It is an arithmetic number, because the mean of its divisors is an integer number (38797940565).

Almost surely, 2^309903272713 is an apocalyptic number.

It is an amenable number.

309903272713 is a deficient number, since it is larger than the sum of its proper divisors (480251807).

309903272713 is an equidigital number, since it uses as much as digits as its factorization.

309903272713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96587.

The product of its (nonzero) digits is 428652, while the sum is 46.

The spelling of 309903272713 in words is "three hundred nine billion, nine hundred three million, two hundred seventy-two thousand, seven hundred thirteen".