20304013311 has 10 divisors (see below), whose sum is σ = 30330686672. Its totient is φ = 13536008820.

The previous prime is 20304013307. The next prime is 20304013313. The reversal of 20304013311 is 11331040302.

It is not a de Polignac number, because 20304013311 - 2² = 20304013307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304013313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 125333335 + ... + 125333496.

Almost surely, 2^20304013311 is an apocalyptic number.

20304013311 is a deficient number, since it is larger than the sum of its proper divisors (10026673361).

20304013311 is an equidigital number, since it uses as much as digits as its factorization.

20304013311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250666843 (or 250666834 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20304013311 its reverse (11331040302), we get a palindrome (31635053613).

The spelling of 20304013311 in words is "twenty billion, three hundred four million, thirteen thousand, three hundred eleven".