20302211011 has 4 divisors (see below), whose sum is σ = 20309524632. Its totient is φ = 20294897392.

The previous prime is 20302211009. The next prime is 20302211029. The reversal of 20302211011 is 11011220302.

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 20302211011 - 2¹ = 20302211009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20302210982 and 20302211000.

It is not an unprimeable number, because it can be changed into a prime (20302211051) 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, 3652645 + ... + 3658198.

It is an arithmetic number, because the mean of its divisors is an integer number (5077381158).

Almost surely, 2^20302211011 is an apocalyptic number.

20302211011 is a deficient number, since it is larger than the sum of its proper divisors (7313621).

20302211011 is an equidigital number, since it uses as much as digits as its factorization.

20302211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313620.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20302211011 its reverse (11011220302), we get a palindrome (31313431313).

The spelling of 20302211011 in words is "twenty billion, three hundred two million, two hundred eleven thousand, eleven".