20303323113 has 4 divisors (see below), whose sum is σ = 27071097488. Its totient is φ = 13535548740.

The previous prime is 20303323109. The next prime is 20303323129. The reversal of 20303323113 is 31132330302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20303323113 - 2² = 20303323109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20303323113.

It is not an unprimeable number, because it can be changed into a prime (20303323013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3383887183 + ... + 3383887188.

It is an arithmetic number, because the mean of its divisors is an integer number (6767774372).

Almost surely, 2^20303323113 is an apocalyptic number.

It is an amenable number.

20303323113 is a deficient number, since it is larger than the sum of its proper divisors (6767774375).

20303323113 is an equidigital number, since it uses as much as digits as its factorization.

20303323113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767774374.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20303323113 its reverse (31132330302), we get a palindrome (51435653415).

The spelling of 20303323113 in words is "twenty billion, three hundred three million, three hundred twenty-three thousand, one hundred thirteen".