20301311011 has 4 divisors (see below), whose sum is σ = 20345349024. Its totient is φ = 20257273000.

The previous prime is 20301310999. The next prime is 20301311029. The reversal of 20301311011 is 11011310302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20301311011 - 2¹⁵ = 20301278243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301310982 and 20301311000.

It is not an unprimeable number, because it can be changed into a prime (20301311411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22018315 + ... + 22019236.

It is an arithmetic number, because the mean of its divisors is an integer number (5086337256).

Almost surely, 2^20301311011 is an apocalyptic number.

20301311011 is a deficient number, since it is larger than the sum of its proper divisors (44038013).

20301311011 is an equidigital number, since it uses as much as digits as its factorization.

20301311011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44038012.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 20301311011 its reverse (11011310302), we get a palindrome (31312621313).

The spelling of 20301311011 in words is "twenty billion, three hundred one million, three hundred eleven thousand, eleven".