20303220002011 has 4 divisors (see below), whose sum is σ = 20303252803224. Its totient is φ = 20303187200800.

The previous prime is 20303220001991. The next prime is 20303220002027. The reversal of 20303220002011 is 11020002230302.

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 20303220002011 - 2²³ = 20303211613403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20303220002081) 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, 15453925 + ... + 16716166.

It is an arithmetic number, because the mean of its divisors is an integer number (5075813200806).

Almost surely, 2^{20303220002011} is an apocalyptic number.

20303220002011 is a deficient number, since it is larger than the sum of its proper divisors (32801213).

20303220002011 is an equidigital number, since it uses as much as digits as its factorization.

20303220002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32801212.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20303220002011 its reverse (11020002230302), we get a palindrome (31323222232313).

The spelling of 20303220002011 in words is "twenty trillion, three hundred three billion, two hundred twenty million, two thousand, eleven".