20831300009 has 16 divisors (see below), whose sum is σ = 23619993600. Its totient is φ = 18212553216.

The previous prime is 20831299997. The next prime is 20831300011. The reversal of 20831300009 is 90000313802.

It is a de Polignac number, because none of the positive numbers 2^k-20831300009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20831300089) 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 15 ways as a sum of consecutive naturals, for example, 1510457 + ... + 1524185.

It is an arithmetic number, because the mean of its divisors is an integer number (1476249600).

Almost surely, 2^20831300009 is an apocalyptic number.

It is an amenable number.

20831300009 is a deficient number, since it is larger than the sum of its proper divisors (2788693591).

20831300009 is a wasteful number, since it uses less digits than its factorization.

20831300009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19904.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 20831300009 in words is "twenty billion, eight hundred thirty-one million, three hundred thousand, nine".